Reviewed By Todd F (Paducah, KY) Reviewed for a 1999 Ford F-250 —11/30/2012 12:57 PM
Was expecting more noise.it is kinda aggressive but fades as you get to highway speeds.Can tell a small HP increase.
Reviewed By Glenn S (Plainville, CT) Reviewed for a 2011 Ford F-250 —2/8/2017 3:19 AM
I replaced the just original muffler with the 50 series It gave it a deeper throaty sound I was looking for. In fact it could have been a little louder. You will need to bring about 16" of 3.5 inch exhaust pipe to your local muffler shop for the install. For some reason they don't carry pipe that big