I have seen where the 2002+ wrx catbacks are put on GC8s and just wondered what it took to pull this off and how the fit would be, especially on my coupe. I remember someone saying you just have to bend the exhaust hangars. I would just rather have the 80mm piping on the wrx greddy evo when i go turbo than the 60-70mm piping on the greddy evo made for the rs. Do you think the size would be worth worrying about enough for me to just buy a muffler i like and get 3inch piping run or to sacrifice the fit for the wrx's bigger catback?