I don't think the f6 sounds good at all, I liked my stock exhaust on mine because it was quiet. Gs I drove had a loud exhaust standard and sounded mint, even better from the inside where the whine was more evident
Seen a xr6t at Calder run a 10.3, may have possibly been headsex lol. Well done, impressive white Fg there also ran 10.4, anyone know anything about it?