Originally Posted by Jetblack135
I have the same problem with my 135i. I had catless downpipes catless midpipes muffler delete. I was thinking it happened after i went full straight pipe. I was thinking no restriction so smoke would go out of my exhaust, mine was crazy smoke like embarrasing! lol I put my stock downpipes back on and it stopped smoking. Looks like we both need catted downpipes now!
my car gets covered sometimes at a light and i try to avoid eye contact cuz im mad embarrassed lmao