Double duration nitros.
Best used for races and escape/top speed skills.

Double the amount of fame gained from events, activitys and freeride.
Best used for gaining levels.

Doubles the range of which live rewards will start beeping.
Not much use for it exept in event times when live rewards are doubled.

Double the amount of loot dropped after races and from live rewards.
Best used for farming parts.

Doubles the amount of score gained in skills.(low altitude, boiju smashing, aerobatics, slalom)
Must have for summits to get good scores.