Originally Posted by 5LHO
The Ford GT500 OEM muffler is a nice, inexpensive upgrade to sound level and quality. It can't be beat, even when compared to a lot of more expensive stuff. It is still a stainless muffler and has passed 100,000 mile durability testing, because it's OEM.
Just an FYI, Borla makes those GT500s for Ford, and the Ford Racing models as well. I got a Borla hat in my Ford Racing Sports box for my V6. The good sound and no drone had me purchase Borla ATAKs for my GT I traded the six-gun on.
IN order of loudness but all NoDrone: