[Blacdout96]

as a fellow V6 owner that went with ZR1 Rep's, I have 275/315 on my car, you can feel the increase in rotational weight, in both acceleration, and braking. grip is nice untill you slip into the crown of the road where the semi's run lol. unless your seeing some kind of track time like auto-x or road racing, id suggest going 275 to free up a little rotational weight, and tire resistance. Also you havea larger tire selection with 275's.