ok i have a set of bbk headers on my lt1 and when i mash the gas i can hear this like air sound or something, not there before, i have taken it to two seperate places and they tell me there is no exaust leak, but then why can i smell exaust at a stop light, i do have an electric cutout and one guy told me it was that thing, but even when i put the cap on i can still smell it.
i am thinking about putting longtubes in just to get rid of the exaust leak, what are a good set that i can run my emissions stuff with ecluding the cats and o2 sensors?