Originally Posted by 1MOREMOD
the sport wont smell and not much advantage in power to removing the secondary cats. plus it was available cheaply from another member so i scooped it up. now thinking of pairing with a midler sounding rear section like the challenge to finish it off and save me 20lbs.
Nice. Sounds like a good plan. I just got my car so i have to mod slowly. Parts for the M3 are super expensive.