Apr 7, 2012 #1 M MickyE New member Joined Oct 24, 2008 Messages 6 Reaction score 0 Points 1 why do you always have to tune a car after you put an exhaust system and a cold air intake? ive heard it about impreza owners mostly. ive been told it throws cel's after doing only those two things. and im not really sure why
why do you always have to tune a car after you put an exhaust system and a cold air intake? ive heard it about impreza owners mostly. ive been told it throws cel's after doing only those two things. and im not really sure why