Originally Posted by spdy330
Definatly an expense muffler then, I hope it sounds good! So to they cut the old one out? I had the performance exhaust on my 330i and it had to be cut out.
no cutting is needed. it bolts right in.. your OEM axle back is removable... in with the performance exhaust. also just incase... keep your stock if you ever decide to sell it cause oem exhaust sells for $150 here on m3post.com ... LOL...