2012 gt500

[Wharf Rat]

I just put the FRPP SVTLA axle back on mine. It's really not much louder than the stock setup inside the car. Sounds different, but not really louder.

After about 8 different exhaust combos on my 2011 5.0 I came to the conclusion that Ford did too good of a job with the sound deadening on these cars. Any time I had something loud enough to hear inside the car it was haneously loud outside of the car. My favorite was the Pypes mid-muffler system (which is now on Billybosses Boss).

I'll likely just leave the SVTLAs on there but if I try anything else I'll go for the mid-muffler system.

I've had great results from mail order tunes from reputable tuners. I always run the the car on a dyno as soon as I install the tune to check the AFR and in general they have been spot on. The factory wideband through an Aeroforce gauge is a good way to keep an eye on things, too on the GT500.