Tuning Kit (Asphalt 8)

Introduction
The Tuning Kit is a powerup introduced in Asphalt 8.

Usage
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 10000 credits to activate one unit). Each unit lasts about 15 minutes. During this period, it upgrades every aspect of every car you own by adding an extra level to the current upgrade level of the car. This powerup can be replenished by winning cups or finishing certain collections.

Trivia
The Mercedes-Benz Biome earns the highest tuning kit bonus at 68, a far higher rate than most cars in Asphalt 8, being followed by Mazda Furai, which gets a bonus rank of 52, with a gap of 16. All the other cars receive a kit bonus smaller than these two. Thus, it is the B class that receives the highest average kit bonus, while the S class has the least bonus.

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.

Some cars like the Ferrari 599XX has its tuning kit bonus nerfed. In the past, it got a gap of 58 while now it receives around 34.