[JabonYetty]

I recently installed a JB4 G5, running map 2. My mods are in my sig. Previous to installing it i was running without a tune for quite some time. There was a large amount of white smoke coming out of the exhaust, which most was due to not being tuned.

Once I installed the JB4 the smoke was not as bad but still noticeable. For example when I come to a stop i can see the smoke go past my window. Now I have had it checked for oil leaks and there are none. My concern was the turbos, so I also had BMW run a full diagnostic and they see nothing wrong with the turbos. So my question is how much smoke is normal when running catless downpipes? I can also smell gas through my vents when WOT.