Im looking into getting an exhaust to meet my 3" downpipe with sports cat. I have been given a reasonable quote for a 3" cat back system to meet my downpipe. That would mean that the exhaust is 3" turbo back. Is that a bit overkill? I know as Bill @ Badger5 says "Its all about the flow" but I know the Milltek is 2.75 inch. If the 3" is no good, it seems silly to fit a Milltek as that would mean my system is 3", 2.5" (the tapered bit on the downpipe that usually meets the standard exhaust) then 2.75". I also dont want it to sound like a 1.2 corsa, I just want to firstly meet the requirements of stage2, and seconly have a bit " grunt " under acceleration. Any help appreciated as always!