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Changes: Tuning Kit (Asphalt 8)

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{{Tuning kit other games}}
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{{infobox item
  
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{{Tuning Kit a8|style=infobox}}
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| name = Tuning Kit
  
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[[File:Alfa Romeo 4C MAX+PRO+TK (MPH).png|thumb|300px|A MAX+PRO [[Alfa Romeo 4C]] with a '''Tuning Kit''']]
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| image = Image:McLaren P1 maxed out and tuning kit.png
  
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The '''Tuning Kit''' is a performance-enhancing [[booster]] introduced in [[Asphalt 8: Airborne]].
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| imagewidth = 250
  
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| caption = A maxed out [[McLaren P1]] with a '''Tuning Kit''' on ''[[Asphalt 8: Airborne|Asphalt 8 Airborne]].
  
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== Variants ==
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| type = Boost
  
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The [[2020 Spring Update]] introduced 11 different subtypes with various durations:
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| duration = 15 minutes
  
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{{5-Min Tuning Kit a8|style=compact}}
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| effects = Enhances the performance of all playable vehicles roughly by one level in every [[Upgrades|Upgrade]] category (Acceleration, Top Speed, Handling and Nitro) for a limited time period
  
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{{10-Min Tuning Kit a8|style=compact}}
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| source = Buying with Credits<br />Winning cups<br />Finishing certain [[Collections in Asphalt 8|collections]]
  
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{{15-Min Tuning Kit a8|style=compact}}
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| cost = A varying number of Credits, depending on the level of the player:<br /><ul><li>Level 1: {{Credits|4,000}}</li><li>Level ?: {{Credits|10,000}}</li></ul>
  
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{{30-Min Tuning Kit a8|style=compact}}
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}}
  
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{{1-Hour Tuning Kit a8|style=compact}}
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The '''Tuning Kit''' is a powerup introduced in ''[[Asphalt 8: Airborne]]''.
  
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{{3-Hour Tuning Kit a8|style=compact}}
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{{8-Hour Tuning Kit a8|style=compact}}
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{{24-Hour Tuning Kit a8|style=compact}}
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{{3-Day Tuning Kit a8|style=compact}}
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{{7-Day Tuning Kit a8|style=compact}}
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{{30-Day Tuning Kit a8|style=compact}}
   
 
== Usage ==
  
== Usage ==
  ⚫
The Tuning Kit is a special booster that enhances the performance of all playable vehicles by up to a maximum of 30% (27.5% when maxed out) in every [[Upgrades|upgrade]] category (Acceleration, Top Speed, Handling, and Nitro) for a limited period of 15 minutes.
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The Tuning Kit can be used before the race using a powerup selection before starting a race (if you don't have one, it costs a number of Credits to activate one, depending on your level). Each unit lasts about 15 minutes. During this period, it upgrades every aspect of every car you own by adding an extra level to all current [[Upgrades|upgrade]] levels of the car. This powerup can be replenished by winning cups or finishing certain [[Collections in Asphalt 8|collections]].
  
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The Tuning Kit can be activated using a boosts menu that appears before every race. It appears alongside the Double Credits Booster, [[Nitro Starter]] and [[Extra Tank]].
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The Tuning Kit can be obtained by purchasing it for anywhere between {{A8Credits|4,000}} to {{A8Credits|10,000}}, depending on the player's progress.
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The Tuning Kit can also be obtained for free from various sources, including [[Time-Limited Events]], [[Daily Bonus]]es, Daily Advertisements, [[Mastery]], [[Collections in Asphalt 8|Collections]], and [[Multiplayer League]]. If obtained in this way, the Tuning Kit's usual green purchase button is replaced by a white button displaying the number of free Tuning Kits available. The Tuning Kit can also be obtained by "Tuning Kit-only" daily advertisements (you get 5), with the advertisement button appearing next to the Tuning Kit in the boosts menu. These types of free Tuning Kits don't have a timer; instead, they are "one use only" but they also do not "decay".
   
 
If the Tuning Kit boost is activated, a boost icon will appear in the main menu along with a timer indicating how long the boost will last. A timer will also appear on the Boosts-screen indicating the remaining time of the activated boost.
  
If the Tuning Kit boost is activated, a boost icon will appear in the main menu along with a timer indicating how long the boost will last. A timer will also appear on the Boosts-screen indicating the remaining time of the activated boost.
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[[File:Tuning Kit Info.png|centre|thumb|400x400px|Tuning Kit info as stated in Asphalt 8: Airborne.]]
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== Mechanics ==
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==== '''''Performance Boost Calculations for Cars (excluding Bikes and Formula One Cars)''''' ====
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With the car at stock (no [[upgrades]]), the Tuning Kit works by boosting the car's MAX statistics each by one level. A car with "0000 0000" as its tuning will be boosted to the equivalent of "1111 0000" temporarily.
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When the car is upgraded to [[Pro Kits|MAX + PRO]], the Tuning Kit works differently. Instead of increasing each MAX statistic to the equivalent of the next level, the Tuning Kit increases each MAX statistic to an imaginary "6th MAX level".
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Because of the way that the Tuning Kit bonus works from MAX levels 0 to 4, the Tuning Kit bonus' boost amount is directly influenced by the gap between the stock and MAX ranks of the car. Logically, a larger gap in the MAX ranks means that the Tuning Kit will imitate that large MAX rank gap, giving a larger Tuning Kit boost. The level 4 MAX Tuning Kit size boosts the car's performance to level 5 MAX, so the Tuning Kit boost at a tuning of 4444 0000 is the equivalent of 5555 0000. Compared to the difference between the stock and level 5 MAX levels, the Tuning Kit bonus at 4444 0000 is the equivalent of exactly 30% of the boost gained from those MAX upgrades.
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At MAX + PRO, the Tuning Kit is still influenced by the difference from stock to MAX. However, the imaginary value which is created is always less than the value gained at 4444 0000. The imaginary value is usually the equivalent of 27.5% of the difference from stock to MAX. This means that the Tuning Kit bonus at 5555 0000 is the equivalent of the Tuning Kit bonus at 4444 0000 multiplied by <sup>11</sup>/<sub>12</sub> (91.67%).
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==== '''''Other Useful Information''''' ====
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It should be noted that cars with lower starting ranks usually only have larger Tuning Kit bonuses for the raw top speed statistic. The acceleration, handling and [[nitro]] statistics usually remain constant across all cars.
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A good example of this is seen when the [[Volkswagen Beetle Turbo]] (D1230) and [[Renault CLIO R.S. 200 EDC]] (D1202) are compared. Although the handling statistics are different (they should be disregarded for this example) the Beetle and the CLIO share the same nitro statistic and acceleration statistic. Despite the fact that the Beetle has a much lower starting rank than the CLIO, which allows it to be Multiplayer tuned, the Beetle's nitro statistic does not start at a lower level, nor does it end at a higher level. Even the Tuning Kit bonus remains constant. The same is seen with the acceleration statistic. The only difference which the Tuning Kit creates is a 6.2 mph (10.0 km/h) increase in the raw top speed and the total top speed (the Beetle is faster than the CLIO).
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With a highly nitro-based car like the [[Renault Trezor]], [[Renault DeZir]], or [[Porsche 959]], the situation is the same. Despite nitro seeming like the dominant statistic, the real situation is that the raw top speed has been reduced, allowing the nitro to essentially replace raw top speed when upgraded. The nitro statistic still remains constant across cars with the same-sized nitro.
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Another important thing to note is that PRO upgrades don't increase the Tuning Kit bonus. Therefore, it's usually better to upgrade MAX levels first (the forced coefficient can make Pro Kits the more efficient upgrade-type, however). It should also be noted that [[Asphalt 8: Airborne/Upgrade Rank Percentages|Upgrade Rank Percentages]] play a very large role in Multiplayer tuning cars, so that is why most cars are best tuned towards either raw top speed or nitro, but not both.
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Another point is that the nitro statistic can greatly influence the performance of a car and the size of its Tuning Kit. For example, the [[Porsche 911 GT3 RS]] has a fairly large Tuning Kit size, yet it doesn't receive a speed boost as large as the [[Lamborghini Asterion]] or [[Lamborghini Aventador LP 700-4]]. The reason for this is that its nitro is large and its raw top speed is low. The nitro increases the displayed Tuning Kit size (the number), but the Tuning Kit bonus isn't actually supposed to be that large. This also means that, in Class B, the [[Shelby Cobra 427]] technically has a larger Tuning Kit bonus than the [[Honda Integra Type-R]], despite it appearing smaller.
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The last point is that cars in Class D have greatly increased speeds if they have large nitro statistics, while cars in other classes have slightly reduced speeds if they have large nitro statistics. For Class D cars, the speed can be increased by over 10 mph (16 km/h) if the car has an unusually large nitro, as seen with the [[Ford F-150]], Renault DeZir, and Porsche 959. For the other classes, the speed can be reduced generally by up to 5 mph (8 km/h), as seen with the [[ED Design Torq]], Honda Integra Type-R, and many other cars. This is relevant because it can often seem that the Tuning Kit or Multiplayer tuning are the only things responsible for the increased speeds of the three Class D cars mentioned, when, in reality, it is largely due to their massive nitro statistics. Also, for nitro-based cars in higher Classes, this is relevant so that players are not fooled into believing that the cars are very good for Multiplayer just because they have large Tuning Kit bonuses.
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== Records ==
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* The Renault DeZir has the highest displayed Tuning Kit bonus at 128 points, beating the Ford F-150's 95 points, with only a 33 point difference between the two. All of the other cars receive a kit bonus smaller than these two (excluding the Audi R8 e-tron Special Edition, which equals the F-150, with 95 points).
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* Highest Tuning Kit bonuses for each class:
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** [[Renault DeZir]] (Class D): '''+128'''; Speed gained (MAX): 47.0 mph (75.7 km/h)
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*** This is due to the tiny PRO rank increase of 109 (there are only 2 Pro Kit levels) and the car receiving 25.7 mph (41.4 km/h) worth of raw speed and 21.3 mph (34.3 km/h) worth of nitro speed.
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** [[Range Rover Evoque Coupe HSE Dynamic]] (Class C): '''+84'''; Speed gained (MAX): 46.1 mph (74.3 km/h)
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** [[Honda Integra Type-R]] (Class B): '''+77'''; Speed gained (MAX): 42.6 mph (68.6 km/h)
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*** Note: As the Integra is a nitro-focused car, the Integra's tuning kit appears to be the highest in its class. Adhering to the tuning kit rule regarding the amount of speed gained from maxing out the car's top speed and nitro stats, the [[BMW M2 Special Edition]] and [[Mazda RX-8 Special Edition]] actually have the largest tuning kit bonus within Class B, at '''+75''' points. 
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** [[Audi R8 e-tron Special Edition]] (Class A): '''+95'''; Speed gained (MAX): 77.6 mph (125.0 km/h)
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*** This is due to the low starting rank at 459.
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** [[Aston Martin Vulcan]] (Class S): '''+62'''; Speed gained (MAX): 56.8 mph (91.4 km/h)
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* Lowest Tuning Kit bonuses for each class:
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** [[Suzuki GSX-R750]] (Class D): '''+35'''; Speed gained (MAX): 14.2 mph (22.9 km/h)
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** [[Vencer Sarthe]] (Class C): '''+20'''; Speed gained (MAX): 12.0 mph (19.3 km/h)
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** [[BXR Bailey Blade GT1]] (Class B): '''+20'''; Speed gained (MAX): 15.1 mph (24.3 km/h)
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** [[RUF RT 12 S]] (Class A): '''+25'''; Speed gained (MAX): 19.5 mph (31.4 km/h)
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*** For players that do not have the RT 12 after the [[Porsche Update]], the [[Zenvo ST1]] has the lowest tuning kit boost among all Class A vehicles in the garage, at '''+26''' with a MAX speed gain of 20.4 mph (32.9 km/h).
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** [[Arash AF10]] (Class S): '''+18'''; Speed gained (MAX): 15.5 mph (25.0 km/h)
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*** This is also the lowest of any vehicle in the game.
   
 
== Trivia ==
  
== Trivia ==
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* As of the [[Dubai Update]] and [[Winter Update]], the tuning kits have been changed significantly. For example, Tuning Kits applied on a maxed out [[McLaren P1™]] (Rank 1611/1611) now award it with only 33 points, making it 1644, as opposed to the pre-Dubai Update's bonus of 50 points.
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* The [[Renault DeZir]] earns the highest Tuning Kit bonus with 128 points, beating the [[Ford F-150]]'s 95 points, with only a 33 point difference between the two. All the other cars receive a kit bonus smaller than these two. Thus, the sub-Class A cars receive the highest average kit bonus, while the [[:Category:Class A|Class A]] and [[:Category:Class S|Class S]] cars have the least bonus.
  
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** Also, when maxed out, Tuning Kits only award +27.5% of each aspect to the car, as opposed to 35.0% before the Dubai update.
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* In spite of the fact that the [[SSC Tuatara]] has the smallest gap of minimum and maximum rank, it does not receive the least Tuning Kit bonus.
  
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* Three boosters ([[Double Credits]], [[Nitro Starter]] (simply called "Nitro" at that time), and [[Tuning Kit]]) were added in [[Free to Play Update|Update 1]] in November 2013, when the game was made freemium and new cars were added along with Time-Limited Events and customizable controls. ([http://www.mobile88.com/gaming/asphalt-8-airborne-update-android-racing/ source 1], [http://www.idownloadblog.com/2013/11/04/asphalt-8-now-free-to-play-new-content/ source 2])
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* As of the [[Dubai update]] and [[Winter update]], the tuning kits have been changed significantly. For example, Tuning Kits applied on a maxed out [[McLaren P1]] (Rank 1611/1611) now award it with only 33 points, making it 1644, as opposed to the pre-Dubai update's bonus of 50 points.
  
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* In earlier stages of the game (around February 2014), the Tuning Kit powerups received as trophies in the Time-Limited Events lasted for 8 hours. At that time the [[Nitro Starter]] would last for 2 hours and [[Extra Tank]] for 4 hours. So, Tuning Kit powerups' duration has been reduced to 1/32 of the original values (a ~96.9 % reduction in duration), and Nitro Starter powerups' duration has been reduced to 1/12 of the original values (a ~91.7 % reduction in duration).
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** Also, when maxed out, Tuning Kits only award ~80% of each aspect to the car, while acceleration awards 96.97%.
  
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* The cost of one booster minute before and after the latest booster update:
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* Three boosters ([[Double Credits]], [[Nitro Starter]] (simply called "Nitro" at that time) and [[Tuning Kit]]) were added in [[Update 1]] in November 2013, when the game was made freemium and a new car was added along with Time-Limited Events and customizable controls. ([http://www.mobile88.com/gaming/asphalt-8-airborne-update-android-racing/ source 1], [http://www.idownloadblog.com/2013/11/04/asphalt-8-now-free-to-play-new-content/ source 2])
  
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*: Old Nitro Starter: 15,000 credits / 120 min = 125 credits/minute<br />New Nitro Starter: 7,500 credits / 10 min = 750 credits/minute<br /><br />Old Tuning Kit: 40,000 credits / 480 min = 83.33 credits/minute<br />New Tuning Kit: 10,000 credits / 15 min = 666.67 credits/minute
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* In earlier stages of the game (around February 2014), the Tuning Kit powerups received as trophys in the Time-Limited Events lasted for 8 hours. At that time the [[Nitro Starter]] would last for 2 hours and [[Extra Tank]] for 4 hours. So, Tuning Kit powerups' duration has been reduced to 1/32 of the original values (a ~96.9 % reduction in duration), and Nitro Starter powerups' duration has been reduced to 1/12 of the original values (a ~91.7 % reduction in duration).
  
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*:: The cost of one Nitro Starter booster minute has increased by 600 % and the price of one Tuning Kit minute has increased by ~800 %.<br />Source: Touch Arcade: Universal Asphalt 8: Airborne - (by Gameloft), [http://forums.toucharcade.com/showthread.php?page=1317&t=201193 page 1317] (the duration of the Nitro Starter in the calculations on that page is (erroneously) stated as 15 min).
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* The cost of one booster minute before and after the latest booster update:<br />
  
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* After [[The Great Wall Update]] was released in March 2014, the 2 hour [[Nitro Starter]] cost 9,000 Credits and the 8 hour Tuning Kit cost 24,000 Credits (source: YouTube (rrvirus): [https://www.youtube.com/watch?v=9ebP3Pc7N4U&t=1m9s Asphalt 8: Airborne v1.3.0 (The Great Wall Update)] [@ 1:09]). Compared to the price level roughly a year later, the annual average inflation rate for Nitro Starter is 900 % and the annual average inflation rate for Tuning Kit is ~1233 %.
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::::: Old Nitro Starter: 15,000 credits / 120 min = 125 credits/minute<br />New Nitro Starter: 7,500 credits / 10 min = 750 credits/minute<br /><br />Old Tuning Kit: 40,000 credits / 480 min = 83.33 credits/minute<br />New Tuning Kit: 10,000 credits / 15 min = 666.67 credits/minute<br />
  
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::: The cost of one Nitro Starter booster minute has increased by 600 % and the price of one Tuning Kit minute has increased by ~800 %.<br />Source: Touch Arcade: Universal Asphalt 8: Airborne - (by Gameloft), [http://forums.toucharcade.com/showthread.php?page=1317&t=201193 page 1317] (the duration of the Nitro Starter in the calculations on that page is (erroneously) stated as 15 min).
  
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* After [[The Great Wall update]] was released in March 2014, the 2 hour Nitro Starter cost 9,000 Credits and the 8 hour Tuning Kit cost 24,000 Credits (source: YouTube (rrvirus): [https://www.youtube.com/watch?v=9ebP3Pc7N4U&t=1m9s Asphalt 8: Airborne v1.3.0 (The Great Wall Update)] [@ 1:09]). Compared to the the price level roughly a year later, the annual average inflation rate for Nitro Starter is 900 % and the annual average inflation rate for Tuning Kit is ~1233 %.
 
 
** '''Nitro Starter''': 75 credits / minute &rarr; 750 credits / minute = 900 % annual average inflation rate = the prices are doubled every 3⅔ months.
  
** '''Nitro Starter''': 75 credits / minute &rarr; 750 credits / minute = 900 % annual average inflation rate = the prices are doubled every 3⅔ months.
 
** '''Tuning Kit''': 50 credits / minute &rarr; 666.67 credits / minute = ~1233 % annual average inflation rate = the prices are doubled every 3.26 months.
  
** '''Tuning Kit''': 50 credits / minute &rarr; 666.67 credits / minute = ~1233 % annual average inflation rate = the prices are doubled every 3.26 months.
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*** This rate is well above the limits of [https://en.wikipedia.org/wiki/Hyperinflation hyperinflation], and in real life numbers like these would cause major difficulties in the economies in question. Such numbers (inflation rates over one thousand percent) are rarely seen, usually only during war-time or at the time of a collapse of a nation (the Weimar Republic of Germany economy in the early twenties, The Soviet Union hyperinflation in the early nineties and the Robert Mugabe -era in Zimbabwe early 21st-century are all text-book cases of hyperinflation). In a normal economic recession, the annual average inflation rates tend to keep well below 30 % in all commodities.
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*** This rate is well above the limits of [https://en.wikipedia.org/wiki/Hyperinflation hyperinflation], and in real life numbers like these would cause major difficulties in the economies in question.
 
* A car that has been upgraded to Level 4 on all aspects and has a Tuning Kit on will behave exactly the same as a car with maxed out stats and no Tuning Kit.
  
* A car that has been upgraded to Level 4 on all aspects and has a Tuning Kit on will behave exactly the same as a car with maxed out stats and no Tuning Kit.
 
** This is assuming that [[Pro Kits]] aren't applied.
  
** This is assuming that [[Pro Kits]] aren't applied.
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* In [[Asphalt 8: Infected (Race Type)|Infected]] mode, Tuning Kits increase the car's top speed when infected.
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* In [[Infected]] mode, Tuning Kits increase the car's top speed when infected, but the infected speed bonus is always a fixed 22.2 mph (35.7 km/h).
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{{clr}}
  
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{{navbox
  
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| header = Boosters in ''[[Asphalt 8: Airborne]]''
  
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| body = [[Double Credits]] &mdash; [[Extra Tank]] &mdash; [[Nitro Starter]] &mdash; [[Tuning Kit]]
  
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}}
  
   
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== Previous versions ==
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[[Category:Asphalt 8 Airborne]]
  
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* {{Tuning Kit (pre 4.9.0) a8}}
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[[Category:Boosts]]
  
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{{Navbox booster a8}}
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[[Category:Boosters]]
  
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[[Category:Items]]
  

Revision as of 21:57, 21 May 2020

This page for other games ▾
Asphalt Nitro
Tuning Kit
Tuning Kit
"Upgrade the performance of all your vehicles for a limited time!"
Info
Last checked Dec 28, 2020
Price
Fusion Coins 18,000 – Fusion Coins 1,800,000
Sale value Fusion Coins 360 – Fusion Coins 36,000
Duration 5 minutes – 30 days
Availability Permanent offer
Gauntlet Store
Standard ads
Collections
Time-Limited Events
Festival
Festival Premium reward
Bundles
Alfa Romeo 4C MAX+PRO+TK (MPH)

A MAX+PRO Alfa Romeo 4C with a Tuning Kit

The Tuning Kit is a performance-enhancing booster introduced in Asphalt 8: Airborne.

Variants

The 2020 Spring Update introduced 11 different subtypes with various durations:

5-Min Tuning Kit 5-Min Tuning Kit – Last checked: Dec 28, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 18,000 or Gauntlet Badges 25, Sale value: Fusion Coins 360
Duration: 5 minutes
Availability: Permanent offer, Gauntlet Store, standard ads, milestone ads, Multiplayer Season Points, Time-Limited Events
10-Min Tuning Kit 10-Min Tuning Kit – Last checked: Jul 29, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 30,000, Sale value: Fusion Coins 600
Duration: 10 minutes
Availability: Permanent offer, Multiplayer Season Points
15-Min Tuning Kit 15-Min Tuning Kit – Last checked: Aug 8, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 36,000, Sale value: Fusion Coins 720
Duration: 15 minutes
Availability: Permanent offer, Multiplayer Season Points, Time-Limited Events, Festival, Bundles
30-Min Tuning Kit 30-Min Tuning Kit – Last checked: Aug 8, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 60,000, Sale value: Fusion Coins 1,200
Duration: 30 minutes
Availability: Permanent offer, Multiplayer Season Points, Collections, Time-Limited Events, Bundles
1-Hour Tuning Kit 1-Hour Tuning Kit – Last checked: Jul 29, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 90,000, Sale value: Fusion Coins 1,800
Duration: 1 hour
Availability: Permanent offer, Multiplayer Season Points, Festival Premium reward
3-Hour Tuning Kit 3-Hour Tuning Kit – Last checked: Jul 29, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 180,000, Sale value: Fusion Coins 3,600
Duration: 3 hours
Availability: Permanent offer, Multiplayer Season Points, Collections, Festival
8-Hour Tuning Kit 8-Hour Tuning Kit – Last checked: May 28, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 270,000, Sale value: Fusion Coins 5,400
Duration: 8 hours
Availability: Permanent offer
24-Hour Tuning Kit 24-Hour Tuning Kit – Last checked: May 28, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 450,000, Sale value: Fusion Coins 9,000
Duration: 24 hours
Availability: Permanent offer
3-Day Tuning Kit 3-Day Tuning Kit – Last checked: May 28, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 630,000, Sale value: Fusion Coins 12,600
Duration: 3 days
Availability: Permanent offer
7-Day Tuning Kit 7-Day Tuning Kit – Last checked: May 28, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 900,000, Sale value: Fusion Coins 18,000
Duration: 7 days
Availability: Permanent offer, Bundles
30-Day Tuning Kit 30-Day Tuning Kit – Last checked: May 28, 2020
"Upgrade the performance of all your vehicles for a limited time!"
Price: Fusion Coins 1,800,000, Sale value: Fusion Coins 36,000
Duration: 30 days
Availability: Permanent offer

Usage

The Tuning Kit is a special booster that enhances the performance of all playable vehicles by up to a maximum of 30% (27.5% when maxed out) in every upgrade category (Acceleration, Top Speed, Handling, and Nitro) for a limited period of 15 minutes.

The Tuning Kit can be activated using a boosts menu that appears before every race. It appears alongside the Double Credits Booster, Nitro Starter and Extra Tank.

The Tuning Kit can be obtained by purchasing it for anywhere between Credits 4,000 to Credits 10,000, depending on the player's progress.

The Tuning Kit can also be obtained for free from various sources, including Time-Limited Events, Daily Bonuses, Daily Advertisements, Mastery, Collections, and Multiplayer League. If obtained in this way, the Tuning Kit's usual green purchase button is replaced by a white button displaying the number of free Tuning Kits available. The Tuning Kit can also be obtained by "Tuning Kit-only" daily advertisements (you get 5), with the advertisement button appearing next to the Tuning Kit in the boosts menu. These types of free Tuning Kits don't have a timer; instead, they are "one use only" but they also do not "decay".

If the Tuning Kit boost is activated, a boost icon will appear in the main menu along with a timer indicating how long the boost will last. A timer will also appear on the Boosts-screen indicating the remaining time of the activated boost.

Tuning Kit Info

Tuning Kit info as stated in Asphalt 8: Airborne.

Mechanics

Performance Boost Calculations for Cars (excluding Bikes and Formula One Cars)

With the car at stock (no upgrades), the Tuning Kit works by boosting the car's MAX statistics each by one level. A car with "0000 0000" as its tuning will be boosted to the equivalent of "1111 0000" temporarily.

When the car is upgraded to MAX + PRO, the Tuning Kit works differently. Instead of increasing each MAX statistic to the equivalent of the next level, the Tuning Kit increases each MAX statistic to an imaginary "6th MAX level".

Because of the way that the Tuning Kit bonus works from MAX levels 0 to 4, the Tuning Kit bonus' boost amount is directly influenced by the gap between the stock and MAX ranks of the car. Logically, a larger gap in the MAX ranks means that the Tuning Kit will imitate that large MAX rank gap, giving a larger Tuning Kit boost. The level 4 MAX Tuning Kit size boosts the car's performance to level 5 MAX, so the Tuning Kit boost at a tuning of 4444 0000 is the equivalent of 5555 0000. Compared to the difference between the stock and level 5 MAX levels, the Tuning Kit bonus at 4444 0000 is the equivalent of exactly 30% of the boost gained from those MAX upgrades.

At MAX + PRO, the Tuning Kit is still influenced by the difference from stock to MAX. However, the imaginary value which is created is always less than the value gained at 4444 0000. The imaginary value is usually the equivalent of 27.5% of the difference from stock to MAX. This means that the Tuning Kit bonus at 5555 0000 is the equivalent of the Tuning Kit bonus at 4444 0000 multiplied by 11/12 (91.67%).

Other Useful Information

It should be noted that cars with lower starting ranks usually only have larger Tuning Kit bonuses for the raw top speed statistic. The acceleration, handling and nitro statistics usually remain constant across all cars.

A good example of this is seen when the Volkswagen Beetle Turbo (D1230) and Renault CLIO R.S. 200 EDC (D1202) are compared. Although the handling statistics are different (they should be disregarded for this example) the Beetle and the CLIO share the same nitro statistic and acceleration statistic. Despite the fact that the Beetle has a much lower starting rank than the CLIO, which allows it to be Multiplayer tuned, the Beetle's nitro statistic does not start at a lower level, nor does it end at a higher level. Even the Tuning Kit bonus remains constant. The same is seen with the acceleration statistic. The only difference which the Tuning Kit creates is a 6.2 mph (10.0 km/h) increase in the raw top speed and the total top speed (the Beetle is faster than the CLIO).

With a highly nitro-based car like the Renault Trezor, Renault DeZir, or Porsche 959, the situation is the same. Despite nitro seeming like the dominant statistic, the real situation is that the raw top speed has been reduced, allowing the nitro to essentially replace raw top speed when upgraded. The nitro statistic still remains constant across cars with the same-sized nitro.

Another important thing to note is that PRO upgrades don't increase the Tuning Kit bonus. Therefore, it's usually better to upgrade MAX levels first (the forced coefficient can make Pro Kits the more efficient upgrade-type, however). It should also be noted that Upgrade Rank Percentages play a very large role in Multiplayer tuning cars, so that is why most cars are best tuned towards either raw top speed or nitro, but not both.

Another point is that the nitro statistic can greatly influence the performance of a car and the size of its Tuning Kit. For example, the Porsche 911 GT3 RS has a fairly large Tuning Kit size, yet it doesn't receive a speed boost as large as the Lamborghini Asterion or Lamborghini Aventador LP 700-4. The reason for this is that its nitro is large and its raw top speed is low. The nitro increases the displayed Tuning Kit size (the number), but the Tuning Kit bonus isn't actually supposed to be that large. This also means that, in Class B, the Shelby Cobra 427 technically has a larger Tuning Kit bonus than the Honda Integra Type-R, despite it appearing smaller.

The last point is that cars in Class D have greatly increased speeds if they have large nitro statistics, while cars in other classes have slightly reduced speeds if they have large nitro statistics. For Class D cars, the speed can be increased by over 10 mph (16 km/h) if the car has an unusually large nitro, as seen with the Ford F-150, Renault DeZir, and Porsche 959. For the other classes, the speed can be reduced generally by up to 5 mph (8 km/h), as seen with the ED Design Torq, Honda Integra Type-R, and many other cars. This is relevant because it can often seem that the Tuning Kit or Multiplayer tuning are the only things responsible for the increased speeds of the three Class D cars mentioned, when, in reality, it is largely due to their massive nitro statistics. Also, for nitro-based cars in higher Classes, this is relevant so that players are not fooled into believing that the cars are very good for Multiplayer just because they have large Tuning Kit bonuses.

Records

  • The Renault DeZir has the highest displayed Tuning Kit bonus at 128 points, beating the Ford F-150's 95 points, with only a 33 point difference between the two. All of the other cars receive a kit bonus smaller than these two (excluding the Audi R8 e-tron Special Edition, which equals the F-150, with 95 points).
  • Highest Tuning Kit bonuses for each class:
    • Renault DeZir (Class D): +128; Speed gained (MAX): 47.0 mph (75.7 km/h)
      • This is due to the tiny PRO rank increase of 109 (there are only 2 Pro Kit levels) and the car receiving 25.7 mph (41.4 km/h) worth of raw speed and 21.3 mph (34.3 km/h) worth of nitro speed.
    • Range Rover Evoque Coupe HSE Dynamic (Class C): +84; Speed gained (MAX): 46.1 mph (74.3 km/h)
    • Honda Integra Type-R (Class B): +77; Speed gained (MAX): 42.6 mph (68.6 km/h)
      • Note: As the Integra is a nitro-focused car, the Integra's tuning kit appears to be the highest in its class. Adhering to the tuning kit rule regarding the amount of speed gained from maxing out the car's top speed and nitro stats, the BMW M2 Special Edition and Mazda RX-8 Special Edition actually have the largest tuning kit bonus within Class B, at +75 points. 
    • Audi R8 e-tron Special Edition (Class A): +95; Speed gained (MAX): 77.6 mph (125.0 km/h)
      • This is due to the low starting rank at 459.
    • Aston Martin Vulcan (Class S): +62; Speed gained (MAX): 56.8 mph (91.4 km/h)
  • Lowest Tuning Kit bonuses for each class:
    • Suzuki GSX-R750 (Class D): +35; Speed gained (MAX): 14.2 mph (22.9 km/h)
    • Vencer Sarthe (Class C): +20; Speed gained (MAX): 12.0 mph (19.3 km/h)
    • BXR Bailey Blade GT1 (Class B): +20; Speed gained (MAX): 15.1 mph (24.3 km/h)
    • RUF RT 12 S (Class A): +25; Speed gained (MAX): 19.5 mph (31.4 km/h)
      • For players that do not have the RT 12 after the Porsche Update, the Zenvo ST1 has the lowest tuning kit boost among all Class A vehicles in the garage, at +26 with a MAX speed gain of 20.4 mph (32.9 km/h).
    • Arash AF10 (Class S): +18; Speed gained (MAX): 15.5 mph (25.0 km/h)
      • This is also the lowest of any vehicle in the game.

Trivia

  • As of the Dubai Update and Winter Update, the tuning kits have been changed significantly. For example, Tuning Kits applied on a maxed out McLaren P1™ (Rank 1611/1611) now award it with only 33 points, making it 1644, as opposed to the pre-Dubai Update's bonus of 50 points.
    • Also, when maxed out, Tuning Kits only award +27.5% of each aspect to the car, as opposed to 35.0% before the Dubai update.
  • Three boosters (Double Credits, Nitro Starter (simply called "Nitro" at that time), and Tuning Kit) were added in Update 1 in November 2013, when the game was made freemium and new cars were added along with Time-Limited Events and customizable controls. (source 1, source 2)
  • In earlier stages of the game (around February 2014), the Tuning Kit powerups received as trophies in the Time-Limited Events lasted for 8 hours. At that time the Nitro Starter would last for 2 hours and Extra Tank for 4 hours. So, Tuning Kit powerups' duration has been reduced to 1/32 of the original values (a ~96.9 % reduction in duration), and Nitro Starter powerups' duration has been reduced to 1/12 of the original values (a ~91.7 % reduction in duration).
  • The cost of one booster minute before and after the latest booster update:
    Old Nitro Starter: 15,000 credits / 120 min = 125 credits/minute
    New Nitro Starter: 7,500 credits / 10 min = 750 credits/minute

    Old Tuning Kit: 40,000 credits / 480 min = 83.33 credits/minute
    New Tuning Kit: 10,000 credits / 15 min = 666.67 credits/minute
    The cost of one Nitro Starter booster minute has increased by 600 % and the price of one Tuning Kit minute has increased by ~800 %.
    Source: Touch Arcade: Universal Asphalt 8: Airborne - (by Gameloft), page 1317 (the duration of the Nitro Starter in the calculations on that page is (erroneously) stated as 15 min).
  • After The Great Wall Update was released in March 2014, the 2 hour Nitro Starter cost 9,000 Credits and the 8 hour Tuning Kit cost 24,000 Credits (source: YouTube (rrvirus): Asphalt 8: Airborne v1.3.0 (The Great Wall Update) [@ 1:09]). Compared to the price level roughly a year later, the annual average inflation rate for Nitro Starter is 900 % and the annual average inflation rate for Tuning Kit is ~1233 %.
    • Nitro Starter: 75 credits / minute → 750 credits / minute = 900 % annual average inflation rate = the prices are doubled every 3⅔ months.
    • Tuning Kit: 50 credits / minute → 666.67 credits / minute = ~1233 % annual average inflation rate = the prices are doubled every 3.26 months.
      • This rate is well above the limits of hyperinflation, and in real life numbers like these would cause major difficulties in the economies in question.
  • A car that has been upgraded to Level 4 on all aspects and has a Tuning Kit on will behave exactly the same as a car with maxed out stats and no Tuning Kit.
    • This is assuming that Pro Kits aren't applied.
  • In Infected mode, Tuning Kits increase the car's top speed when infected, but the infected speed bonus is always a fixed 22.2 mph (35.7 km/h).

Previous versions

Asphalt 8: Airborne
Boosters in Asphalt 8: Airborne
Double Credits Double Credits • Extra Tank Extra Tank • Nitro Starter Nitro Starter • Tuning Kit Tuning Kit
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