In Reply to: nitrous for an m3 posted by shawn on October 04, 1999 at 23:32:09:
N20 Systems for an OBD2 isn't worth it and probably be tricky. Of course you'll need to have your DME reprogram at WOT but there's a chance or tripping your check engine light. Fuel pressure regulator is also underneath your car so hooking up with long lines might be complicated. Best thing for easy hp for OBD2 cars is either Supercharging or Turbocharging from Mechtech, Bell Engineering, and AA.