The weird noise I hear it when I first start my car it's a loud vibration for a lil and kinda comes and goes during the initial warm up. Background on my car, sounds like it's coming from the downpipe area. I have a 3" tbe but do not have an aftermarket under brace. I put the stock under bars back on with some force because of the clearence issue with the 3" downpipe. I mean those flippin bars are on there and against that downpipe tight, I figured it would avoid vibration and tapping the ACD case till I upgraded them. But now I have that vibration noise, could it be something else related to the drivetrain or is it the downpipe vibrating against the ACD case?!? any help guys? thanx

 

bump