ROAD RAGE
With a full tank and some OVERCHARGE, clean driving gradually converts ordinary BOOST into OVERCHARGE. Using BOOST stops conversion.
- Source
- ON COURSE, OF COURSE
- Unlock
- Complete its achievement collection, then install through PERKULATOR. Earlier completions are remembered.
Use it
Catch some OVERCHARGE, then drive cleanly with a full tank.
Make it work together
Ordinary fuel converts into purple fuel without adding capacity, and stays until BOOST spends it, purple first. BOOST or a less-than-full tank pauses conversion.
Try it on

SUV
An illustrative pairing once the car, perk and PERKULATOR are unlocked. Compare it with the same car’s original setup.
Installing
Earn the collection reward, then install it once PERKULATOR is available. It uses the same one INSTALLED slot. No replay or cloning is needed.