Are you sure about this?!ender18d said:The taper is at the back of the downpipe. Also referred to as a "donut" gasket. See my ongoing thread in this sub-forum for details.
jsmsustudent said:would there be any advantages to getting the 3.5" if you have the stock turbo or is 3" plenty? I might upgrade turbos but it will be a long time before i do.
nandanrp said:^^^Backpressure an issue with 3.5" and stock turbo? (I have no idea, but the thought came to mind).
I'd go 3" regardless...I can't imagine that the 2.5" is THAT much quieter. :notsure: (Cobb is quiet and it's a 3" system with a pinch at the donut gasket)
Blaiser said:well the downpipe has the removable catless pipe part, i can see that in more pics he sent, i dont know any other exhaust system that does that.