I have kind of a custom set-up now with 2 1/4" piping, no cat, with an N1 style muffler, but its all welded together so I cant just buy and bolt up a different cat back system, so im gonna have to cut it off and get a flange welded on where the new catback will bolt up, but im tryin to decide which system to go with. what do you guys think- stay with an n1 style like the hks hi power or something stockish like the buddy club spec 2