Hey, how's it going guys, probably a dumb question here so get ready...
Anyway I'm going to finance a b6 or b7 S4 in the coming months. My brother has one and he did a muffler swap, though it still isn't very loud.
I'm familiar with running straight pipes from the cat back on the many 1.8Ts I've owned, and I know you can get away with it because the turbo creates more than enough back pressure to not lose power?
So my question is, if I were to run 2.5" straight pipes from the cats back on my 4.2 S4, would I lose power? and would I be sacrificing reliability of the car? Because it's naturally aspirated?
Thanks again in advance, I know i'm a noob with this stuff so the help is appreciated lol