RE: NITROUS EXPRESS SYSTEM
no way, an extra small shim per 10% over 20 %. easy.
Anyway for 200 US you can have a hot mods 12. and ive driven a hot mods 12LL3, it was so fast the mugen owner had to replace driveshafts EVERY race. it came out of the final (winner) with driveshafts that had twisted all the way around and a lil bit more.