and I have'nt seen ANY smoke at all except a small black puff when stomping on it (good tune Ash,thanks). I have yet to install my Turbo Timer but my car is always idled down,probably longer than it needs.
I have downpipes and gutted cats on my car so I guess I still have some slight backpressure...I was thinking about getting test pipes but now I'm leaning towards G. Dupree's Hi-Flo cats.
It would be very embarassing having smoke pour from your tailpipes every time you lifted after boosting...I guess there's no fix for this except to maintain some backpressure and give up some HP in the process...*shrug*