I have on '04 with a 10 vein turbo a Gibson 3.5 down pipe to 4inch the rest of the way out, to the rear fender, no cat but I do have a Gibson muffler .. The turbo whine is extremely loud and I want to quiet it down just a little so I can actually drive through a parking lot without blowing out...
No I didn't pay. I had a buddy weld it and we installed it at our shop. It's tig, I know it's not pretty. Up pipe is still stock since the back of the cooler is welded up the same. Could I have done the up pipe instead , yes but I live in California and with our lovely emissions requirements and...