the greddy sp2 sounds soooo nice on the G2 GSR (only car iv heard it on). nice deep base sound, not that loud rice crap

o and i see u want to cut a new hole in ur bumper, i guess u can buy a G3 greddy sp2 but im not sure of the mounting points...or u can buy the piping for the G2 and buy the muffler part for the G3