exhaust query
 

ive been looking at my exhaust system today and it seem that i have the standard downpipe (2.5") with a 3" cat back system fitted to it... the 3" system doesnt narrow down to 2.5" so how does that work then??:wonder:

I can't answer your question, but I had a powerflow system once which I'm sure went from2.5" to 3" back.

It's obviously 3" to 2.5" now

Im sure there is an adapter gasket thing that goes inbetween the 3 inch and 2.5 inch pipework.