I did for two months and it made a nice change on the tone, a little bit louder some extra power, but the really gains came when i got the cat back from solo performance, but you can make a shop change your resonator and muffler for ones with better flow, just make sure to have a large resonator or the test pipe will make it super loud.
Does anyone have a video of this test pipe on the stock exhaust? I'm on the fence on getting an Ark test pipe and I have stock exhaust. Just a Injen cold air intake. I'm curious on the sound and don't want it to have that high pitch sound.