Pro Kit



The Pro Kit system was introduced to Asphalt 8: Airborne during the Winter (December) 2014 Update. It gives players an alternate upgrading system for their cars, alongside the traditional Maxing system.

Function
Pro upgrades are used to increase the performance values of a vehicle, similarly to Max upgrades. However, Pro upgrades do not give as much performance as Max upgrades.

Pro upgrades combine two performance features of a vehicle, reusing the same "statistics" seen in the Upgrades Menu: For motorcycles, these upgrades are named "Bike Tires, Fork Tubes, Transmission, and Bike Exhaust". Although motorcycles do require their own unique cards, the performance-increase mechanics mirror those of the cars.
 * Tires = (Raw) Top Speed + Handling
 * Suspension = Nitro + Handling
 * Drivetrain = (Raw) Top Speed + Acceleration
 * Exhaust = Nitro + Acceleration

Resources
Pro upgrades require credits, like Max upgrades. Unlike Max upgrade, Pro upgrades never require tokens. Also, Pro upgrades cannot be completed with Free Upgrades.

Unlike Max upgrades, Pro upgrades require special Pro kit cards alongside credits.

If there are not enough resources to perform a certain upgrade, two different messages can appear. One tells the player how to find more cards, while the other tells the player how to purchase more credits.

Card Types
Card types can be organized into four different categories: These cards are combined with each other and a sum of credits for each Pro upgrade.
 * 1) "Parts cards" (aka "Class cards")
 * 2) "Technology cards" (aka "Tech cards")
 * 3) "Engine cards"
 * 4) "Blueprints" (not Pro Kit Card but obtainable from Pro Kit Boxes)

Card Rarity
Pro kit cards can possess one of the following types of rarity:
 * 1) Common - Denoted by light blue coloring
 * 2) Rare - Denoted by purple coloring
 * 3) Legendary - Denoted by gold coloring

Obtaining Cards
Pro kit cards are obtained by opening Pro kit boxes. Pro kit boxes can be found in a variety of ways. They can be found through Time-Limited Event Rewards, Daily Bonus Rewards, Daily Challenge Rewards, Advertisements, Car Mastery Rewards, Special Event Rewards (R&D, EDD, Championship), Multiplayer League Rank Rewards, Multiplayer League Points Rewards, or through the Moto Blitz. Pro kit boxes can also be purchased. An internet connection is required to collect and open Pro kit boxes.

Chance of Obtaining Cards
Unless the box has "confirmed contents" or has a special "rarity-filter" or "type-filter", generally, the cards found in Pro kit boxes are completely random. Rarity affects the chance of finding cards; Legendary is the least common type, while Common is the most common type.

Some cards, such as Blueprint cards and i5 Engine cards, have hidden increased rarities. Other cards with hidden increased rarities include:
 * 1) W16 Engines, V16 Engines, F12 Engines, F6 Engines, i6 Engines, Rotary Engines, Serial Racing Engines, Custom Racing Engines, High-Grade Engines, V12 MPI Engines, Exceptional Engines, and Legendary Electric Engines. This is due to the Engines being used by very few vehicles. In the case of the i5 Engine, it's so rare because the only vehicles which use it are the Donkervoort D8 GTO,Audi RS 3 Sportback and Ford Focus RS.
 * 2) Generally, Engine cards and Tech cards tend to be rarer than Parts cards. Blueprints also adhere to this rule.
 * 3) Certain cards are sometimes rarer during their debuts. For example, the Bentley EXP10 Speed 6's Blueprints could not be found during its Blueprint-conversion debut, only being made available after its coinciding Multiplayer Season had ended. This is possibly due to it being the reward car of that season.
 * 4) Motorcycle Parts cards also tend to be rarer than car parts. This is especially true for Class S motorcycle parts. This is because there is currently only one motorcycle for each class (except D and A Class, where there are now two, other classes will get a second in the Lunar New Year 2018 Update). Motorcycle Tech cards also seem to be rarer than car techs. The same cannot be said about motorcycle Engine cards, which seem to be as common as V6 and V8 Engine cards.

Card Storage (Card Inventory)
Pro kit cards are stored in the Card Inventory (aka Inventory). The Inventory has a limited amount of space and can be expanded through the use of tokens. The cost of expansion increases as upgrade levels increase, despite the upgrade amounts being equal (20 spaces each).

The Inventory can also be expanded through Car Mastery Rewards and by collecting Stars in Career Mode.

If the Inventory is full, cards cannot be purchased from the Exclusive Deals Menu, although, otherwise, Pro kit boxes can be obtained. Pro kit boxes that cannot be opened are stored in the Inventory in box-form. They can be opened individually or all at once. If there is not enough space in the Inventory, a prompt appears that tells the player to open fewer boxes or to buy more Inventory space.

Card Merging (Fusion System)
Unwanted cards can be merged together to form new boxes. Generally, more cards go in than go out, allowing the player to have an overall loss of cards, despite the returning supply of cards.

Cards are fused together with a "Fusion Points Collector". The Collector becomes full after being filled with (Fusion Points)-worth of cards. Different cards reward different amounts of points: There are three tiers of Fusion Boxes:
 * - Class D Parts cards, Class C Parts cards, Class B Parts cards, and Common-Rarity Tech cards.
 * - Class A Parts cards, Class S Parts cards, and Rare-Rarity Tech cards.
 * - i4 Engines, V6 Engines, V8 Engines, i5 Engines, Four-Stroke Engines, V-Twin Engines, and Common-Rarity Blueprints.
 * - Hybrid Engines, Electric Engines, Serial Racing Engines, High-Grade Engines, Forced Four-Stroke Engines, and Hot Wheels Engines.
 * - Forced-Induction V8 Engines, F6 Engines, V10 Engines, V12 Engines, F12 Engines, W16 Engines, Rotary Engines, i6 Engines, V16 Engines, Custom Racing Engines, Exceptional Engines, Legendary-Rarity Electric Engines, Legendary-Rarity Tech cards, and Rare-Rarity Blueprints.
 * - Legendary-Rarity Blueprints.

Note: If the cards do not add up to exactly, the extra Fusion Points are left over for the next batch. Prior to Hot Wheels Update, players cannot merge any more than worth of cards at a time and must spend the Fusion Points by opening up boxes, before being able to merge more cards. As of Hot Wheels Update, players can keep fusing cards up to, after which the player is required to open a fusion box.

Tip: To fuse all cards of the same type, press the icon for the card and hold the mouse button. This will select all cards. Alternatively, you can select a more precise amount by using "+" and "-" icons provided on-screen.

On the Asphalt Moments Update and the Halloween Update, the points rewarded from fusing pro cards were reduced.

Selling Cards (Scrapped Feature)
With the introduction of the Fusion System, cards can no longer be sold for credits. Players must use the Fusion system to free up space, through deletion of cards and opening boxes. Fusion Boxes can be stored in the Inventory unopened if the player opens up enough Pro kit boxes to fill up the inventory, after merging cards to fill up the Fusion Points Collector, before opening up a Fusion Box.

Note: Fusion Points awarded are roughly equivalent to previous credit amounts rewarded.

Tiers (Levels)
Pro upgrades are tiered, similarly to Max upgrades. There are generally five tiers of upgrades, however, four vehicles in the game have 10 tiers of upgrades. They are all Formula One cars, and this peculiarity may be due to their debuts as Championship cars.

Higher-tiered upgrades generally require more resources, but also provide more performance. Notably, they also provide larger amounts of rank points; this is a concern for players wishing to "Multiplayer Tune" a vehicle.

''Note: Many early cars do not have five tiers of upgrades. Instead, they can have anywhere between 1-5 tiers of upgrades. It is currently not known what the Performance Boosts vs Rank Boosts (see below) are for cars which have more or less than 5 tiers. It is estimated that cars with 2 tiers have a 43% to 57% weighting ratio for their tier 1 and tier 2 upgrades.''

Performance Boosts vs Rank Boosts
Pro upgrades give different performance boosts based on their tier. The weighting of tiers 1 to 5 tends to be approximately 10%, 15%, 20%, 25%, and 30%. These percentages are based on the entire rank increase of a certain Pro upgrade type. For example, if an acceleration upgrade of a non-F1 vehicle adds a total of 50 ranks, then it can be broken down approximately like so:

1a (5%) = 2.5 ranks

1b (5%) = 2.5 ranks

2a (7.5%) = 3.75 ranks

2b (7.5%) = 3.75 ranks

3a (10%) = 5 ranks

3b (10%) = 5 ranks

4a (12.5%) = 6.25 ranks

4b (12.5%) = 6.25 ranks

5a (15%) = 7.5 ranks

5b (15%) = 7.5 ranks

It is important to note that these upgrades are all shared with other upgrades. For this reason, it is necessary to find the rank increase of the joint upgrade as well (for example, raw top speed) in order to figure out the total rank increase of any particular upgrade, such as an exhaust upgrade.

Cost-Tiering
Generally, higher-level upgrades require more cards and more credits, due to adding more performance. Of course, this isn't always the case; sometimes, higher-level upgrades can be cheaper credits-wise, as seen with the Nissan Juke Nismo. Also, higher-level upgrades can use the same amount of cards as lower-level upgrades.

Card Usage
Most upgrades require a combination of Parts cards and Tech cards. Often, higher-tier upgrades require Engine cards in addition to this. However, some vehicles require Engine cards alongside Parts and Tech cards for all tiers, such as most Class S vehicles. Also, some vehicles require nothing but Engine cards, such as the Bugatti 16.4 Grand Sport Vitesse.

Generally, higher-tier upgrades require more cards and rarer cards. For example, many vehicles have Mid-Techs in their Tier-5 upgrades, but not their Tier-1 to Tier-4 Upgrades. Instead of Mid-Techs, these lower-Tier upgrades require Initial and Early-Techs. Early-Techs are only ever used with nitro-based Pro upgrades, while Initial-Techs are only ever used with raw top speed-based Pro upgrades.

Some vehicles don't use Tech cards for their earlier Pro upgrades.

An example of a Pro upgrade:

 * Vehicle name - Koenigsegg One:1
 * Vehicle type - Car
 * Class - S
 * Upgrade Type - Suspension Pro kit upgrade
 * Level - 2
 * Credits - 34,272
 * Class cards - 4 Class S Suspension cards
 * Tech cards - 3 Mid-Tech cards
 * Engine cards - 1 Forced-Induction V8 card

Total Amounts of Different Pro Kit cards by category
This table does not account for Blueprints or motorcycle parts.

Odds
The probability of receiving a card (out of 100 random cards, a rough estimation based on playing the game (not including or )):
 * Common: ~70 % (60-80 %)
 * Rare: ~20 % (15-25 %)
 * Legendary: ~10 % (5-15 %)

A statistical overview of the rarity distribution for the most common boxes can be found on Best boxes.

There are some reports on the Gameloft Forum that the spread inside a category or between the different types of cards isn't even - though some of the cases listed in the thread might simply be due to tough luck or too small sample size. On other forums, similar reports can be found:
 * "I've got 3 rotary engine for my Furai since winter update, and I've been through close to 1000 cards by now, so 0.3% chance" — Hippida

This conjecture has been finally proven by WikiProject Statistics. Every card has a specific factor that determines its probability, and many boxes have additional hidden rules that influence the box content.

=
Odds when i5 Engine card doesn't exist ===== _______________
 * If the spread was even, the odds of receiving one particular Common card is 7/170 &asymp; 4.12 %.
 * If the spread was even, the odds of receiving one particular Rare card is 2/110 &asymp; 1.82 %.
 * If the spread was even, the odds of receiving one particular Legendary card is 1/80 = 1.25 %.

Parts Cards
Up to 5 Pro Kit levels of Tires, Suspension, Drivetrain and Exhaust can be unlocked (the amount of levels available varies car by car). All Parts cards are tied to the Car class. and Up to 5 Pro Kit levels of Bike Tires, Fork Tubes, Transmission and Bike Exhaust can be unlocked (the amount of levels available varies bike by Motorcycle). All Parts cards are tied to the Motorcycle class.

Suspension

 * Pro Kit Suspension cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Drivetrain

 * Pro Kit Drivetrain cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Exhaust

 * Pro Kit Exhaust cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Bike Tires

 * Pro Kit Bike Tires cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Fork Tubes

 * Pro Kit Fork Tubes cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Transmission

 * Pro Kit Transmission cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Bike Exhaust

 * Pro Kit Bike Exhaust cards: Class D, C and B are Common cards. Class A and S are Rare cards.

Technology Cards
In addition to the standard cards required to perfom a Pro Kit upgrade, the following Technology cards might be required.

Engine Cards
Also Engine cards might be required to perfom a Pro Kit upgrade - usually at higher Pro Kit upgrade levels or with some high end cars. The Toyota Supra RZ (Mark IV), Ferrari Testarossa, Mazda Furai, Volkswagen W12, and Bugatti Veyron 16.4 Grand Sport Vitesse, however, are upgraded to PRO level entirely only with Engine cards and Credits.

Pro Kit Box Prices
See the dedicated Pro Kit Boxes page for a complete listing of all the boxes ever sold.

Note that while the Racer Kit and Expert Kit Boxes do not say anything about Rare:0:0 or cards, it is still possible to get Rare:0:0 or  cards from these two boxes.

According to Driver 4118 Gameloft's official streamer bought and opened a Lunar New Year Box in early March 2015, and he got one Legendary card and one Rare Mid-Tech:0:0 card, so even a bigger amount of Rare:0:0 or  cards in a box won't guarantee that a certain card of that type is received.

Pro Kit Formulas
A comprehensive list of all Pro Kit Formulas can be viewed here.

Cards Needed for a PRO Vehicle
Sources:
 * The aforementioned spreadsheet
 * Conversions: The two Common Technology cards are named almost identically in the documents. In the table above, the following conversions to the Technology cards' names were made: Early Tech copy.pngInitial Tech.png
 * Early Research &rarr; adjustable wrench &rarr; Early Tech (Common)
 * Early Research 2 &rarr; the inverted L-shaped unmotorized unadjustable nut driver &rarr; Initial Tech (Common)
 * Mid Research &rarr; Mid-Tech (Rare)
 * Advanced Research &rarr; Advanced Tech (Legendary)

Pro Inventory




Your Cards will be stored in your Pro Inventory. You can obtain additional inventory slots if ever your inventory tends to fill up too quickly.

Pro Inventory Size

 * Total amount of Free Pro Inventory expansions available: 29
 * After earning a certain amount of Stars, the size of the Pro Inventory can be increased.
 * Min: 60 slots @ 0 Stars
 * Max: 300 slots @ 1,590 Stars
 * Total amount of IAP Pro Inventory expansions available: 60
 * Every expansion adds 20 to 35 slots to the Pro Inventory, the price increases from 15 Tokens to 500 Tokens.
 * Max: 2,040 slots with 18,975 Tokens


 * Total amount of Car Mastery Inventory expansions available: 30
 * Max: 545 slots with

Free Pro Inventory Expansions
Click on [Expand] to discover the size of the Pro Inventory at various Star Levels.

Pro Inventory Expansions
Click on [Expand] to discover the complete price list.

Car Mastery Inventory Expansions
Click on [Expand] to discover the complete list.

How to improve a car with a Pro Kit card?
A good Pro Kit tutorial can be found inside the game [by clicking (i) on the Pro Kits page (you get a free Dodge Dart GT Pro Kit Tires upgrade during the process)]. There's also a Pro Kit Inventory Tutorial inside the game [Main Menu &rarr; Options &rarr; Tutorials &rarr; Pro Kit Inventory Tutorial]. Some advice can be found from the official Gameloft forum, too.
 * 1) Make sure your device is online
 * 2) Select a car you wish to improve
 * 3) Tuning &rarr; Pro Kits &rarr; Apply (requires some amount of Credits)

On the Pro Kits page

 * In order to make the next level-up all side-by-side listed Pro Kit cards are needed. The exact amount of cards required for each Pro Kit level-up are listed in the documents mentioned above (under the header "Pro Kit Formulas" - the table is a summary, but the files contain each and every Pro Kit level-up) and are soon to be found on every Car page, too.
 * The first number below a picture of a Pro Kit card indicates the amount of those cards in the Pro Inventory and the second number below the picture of a Pro Kit card (after the slash) indicates the amount of cards required to make the next level-up. So "4/2" below the picture of a Pro Kit card, for instance, would mean that there's four cards of that type in the Pro Inventory, but only two are required to make the next level-up.
 * The numbers after the name of the category follow the formula: "current Pro Kit level in this category" / "maximum Pro Kit level in this category". So "Suspension 4/5" would mean that currently the Pro Kit Suspension level of the car is 4 and there's still one more level available. After reaching the final Pro Kit level in a category a Pro-banner "You are at the top Pro Kit level!" is displayed instead of the cards. After reaching the final Pro Kit level in all the categories, on the Car selection page a PRO symbol is lit beside the (lit/unlit) MAX symbol.

Trivia

 * The "Forced-Induction V8" card has a bright glow.
 * The "Drivetrain - A" card glows also but less than the V8 Forced Induction
 * The i5 engine card has the same selling price of for Legendary rarity cards despite being a Common rarity card.
 * While the Pro Kit formulas for the Mazda RX-8 and Mazda Furai are correct in using Rotary engine cards, a more accurate name for the card would be Wankel engine as rotary engine can also refer to pistonless rotary engines
 * While the Pro Kit system is not directly brought over to Asphalt Xtreme, its design of requiring cards to install the upgrade is still used.