Originally Posted by Eurostyle
NO stock car runs at 100% of its potential!!! Its all about fuel milage and engine life! This is why you can get 15-20Hp just from the ECU program. Most parts around the engine are very restrictive, stock air boxes and exaust for the most part. My 4.6L V8 truck came with stock single 2" exaust, what a joke, and the airbox opening was about 2.5"-3", with the rest of the intake and MAF at 5"...
There are cars that are built for fuel economy and others built for speed .. you cant tell me that the s2000 or m3 are not running close to there full potential. I heard stories of people putting mods on an s2000 with it only dropping in hp