E46 M3 (2001-2006)
Hey Guys,
So to start off, I just bought an E46 M3 thats in good condition with about 60k miles, and while I'm not new to installing after market parts (exhausts, intakes, headers, ect.) I am new to ECU tuning. Anyways, I was wondering what I would need to do to bring my M3 up from the stock...