so my mid cat is clogged and i thinking of upgrading the muffler at the same time. deleting mid cat? with clean emesion test in ontario
what muffler sounds nice?
upgrade pipe size go duel wtv

Ive had a few different exhaust on my GV

Im actually going to be selling a stainless mandrel bent 2.5" exhaust that has a magnaflow muffler vibrant ultra quiet res and small bottle resonator in the next month and im located in Belleville.

My first exhaust was a custom Y pipe that was 2.5" and I had removed the 3rd cat and ran a flow master muffler and 2.5" tubbing and it sounded like a V8 at idle. WOT sounded good also.

Im going to be building a Y pipe for my XL7 in the next few weeks and if the money is right I would build another set. 

Look up my name I posted the header and exhaust builds years ago also some youtube vids.

Jdmcrv I've been looking at your post and there is alot of awesome stuff I learned alot of stuff thx