Booster

A booster is an enhancement that can be obtained in many of the Asphalt games. Boosters have in common that they last for a limited period of time and that they can be bought with in-game currency or be rewarded for events.

Asphalt 8: Airborne

 * Double Credits
 * Extra Tank
 * Nitro Starter
 * Tuning Kit

Asphalt Xtreme

 * Boosted Wheels
 * Double Credits
 * Extra Tank
 * Nitro Recharger
 * Overclock

Asphalt Nitro

 * Absolute Armor
 * Double Credits
 * Extra Tank
 * Nitro Starter
 * Tuning Kit