a buddy of mine has a GS300 with a borla exhaust, and it sounds SO CLEAN! absolutely no raspiness. that's what i'm looking for. his GS sounds like a big crotch-rocket. i'm nervous to do an exhaust because i do not want that gross raspy sound i here on a lot of 4-cylinders and 6-cylinders. i'm used to the beautiful sound of a V8 in my last 3 cars...