I am sure it would but why? you can get a GT-R exhaust for prolly cheaper. I was looking for just a dual outlet muffler from a gxp and gm wanted 300 dollars just for muffler. I think that might be a big rip off but the GT-R will give you better sound and hp.
Pontac G6 Sedan 3.5L
Exterior- 8000k HIDS lows, 8000k HIDs fog lights, 20% window tint, Tinted taillights, painted grilles (top and bottom) to match, Custom painted engine cover and battery box, Red painted calipers.
Performance- Crab Intake, Racing Line Performance strut tower brace, GT-R Custom Magnaflow exhaust.
Interior- red LED's on inside, custom painted interior trim to match outside, Memphis sub and Amp, Custom fiberglass sub enclosure.