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      01-04-2013, 04:01 PM   #8
Drives: Jet black 135i
Join Date: Jul 2012
Location: Cali

Posts: 765
iTrader: (1)

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!
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