Originally Posted by E90ROXS
Thanks for the feedback guys. I'll take djapex's words and will get it done this weekend but not for $250 though lol. By the way, does it really change the exhaust note without the second cat? I'm doing this for the sound.
watch some youtube clips. imo it does change it a bit. but it also reduces your launching power more so, i believe.
no good, especially with underdog 325i.