Well, what's 5" when you can still think young and go 6". I pulled our 5" 5050 XL resonator off and cut both ends, pulling the stainless steel wool ( resonator ) out, making 6" in 6" out. Now I creep out at idle from campgrounds and when we arrive at Beaver rallies you know Jim and his earplugged bride have arrived. With the air cleaner mod and the ear splitting, basically non existing muffler, my mileage is up and definitely performance.