I have a 1995 M3 5sp. 22k miles. does anyone have any experience with adding a new chip to their M3? any difference noticed? What about cold air? get the conforti shark injector - had one on my 98 m3 - nice extra revs, do it yourself, and measured better accel say from 30 to 60, couple tenths - and great customer service - when my car was totalled they gave me partial credit on a chip for my other car.