QUOTE(Calvinator2016 @ Jul 18 2017, 06:22 PM)
Just curious as to what extent these exhaust systems increase the performance in place of the stock mufflers for a 2.0.
There was a Grassroots Motorsports article on exhaust performance a while back. As I recall it was on a modified 2.0 and the HP increase was maybe 3-5 hp. I don't recall how much hp the engine they were testing on was making. You might want to Google for the article. Exhaust systems like the Tangerine, Hunter and EMW give much more performance.