I have what I believe is a 2.5 magnaflow catback (Unsure of cat-back brand because it was on the car when i got it) with magnapacks welded in. I would guess magnaflow but does really matter its a 2.5. I want a 4" rolled slash tip, On that you cant see the clamp/weld of the tip from the side of the car (Meaning the tip would be too short). All I see on summit racing for magnaflow 4" rolled tips are 18 inches long which would be WAY to long. I know someone who bought 18" (length) tips for a 03 cobra and it stuck out like 3 inches, looked horrible. Does anyone know what size I should buy? Will 12" do it? Or 15"? I cant really find what I'm looking for after doing some heavy searching.......Anyone find anything???