| I bought them and had my local BMW indie shop put them in for the simple fact I didn't have the correct tools or the time.
People have done the install in around 4-5 hours.
Gains, YES! Exactly how much, I am unable to verify since I had a custom done at the same time -- headers, race cats and tune I am putting down 316rwhp and 251 rwt
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'02 M3 6spd MT - CSL headers, HJS race cats, Eisenmann LeMan exhaust with 83mm tips, 19" BBS AirII CK's, Simota CF CAI, AutoSolutions SSK, SS brake line, CDV delete, Scroth 4pt harness', Wilwoods BBK |