Will 2014 GT Mufflers fit 2007 Mustang?

Exhaust Fitment

Hey Jeff,
2014 Mufflers are purpose built for 2011-2014 Mustang GT's so they will not fit a 2007 Mustang GT.

We do offer a couple options such as our Interceptor axle back
2005-09 GT Mustang MRT Interceptor Axle-back Exhaust

And our KR Axle-back Delete
MRT 05-10 Mustang GT/GT500 KR Muffler Delete Axle-back Exhaust

These are both great options for any 05-09 Mustang GT's! Let me know if you have any questions!