02-18-2011, 09:13 AM
Pretty sure someone else on here has a newer GT. I have a brand new OEM never installed GT500 diffuser I won't be needing, the '12s put the backup sensors in the diffuser and the '12 Shelbys aren't available with the sensors so to make the diffuser work I'd have to retrofit it. Luckily the stock diffuser still fits the GT500 mufflers.
$140.
$140.