im leaning towards magnaflow or borla. just going to go to a local shop with the muffler and have him weld it up for me. they gurantee their work for 6 years so im not sweating it much. but ive used borla with great success in the past, cant go wrong with their aircraft quality stainless and the sound on most cars sounds like a caged up pissed off lion wanting to get out. not to mention their dual square intercooled tips look badass.

 

The following thread may shed some light:

https://www.f150online.com/forums/sh...d.php?t=304127

 

I like Borla on Corvettes & Mustangs, sounds alright on the trucks too.

 

I have the Borla duel out the back exhaust and love it sounds great no drone

 

Borla (or Roush as it is made by Borla) is the way to go, no questions the best aftermarket exhaust that you can buy.