Reviewed By Aaron H (Spring Creek, NV) Reviewed for a 1988 Ford F-150 —4/26/2008 11:41 AM
It has increases horsepower and throttle response. I hollowed out my catalytic converters first though. The flowmaster has a great sound to it.
Reviewed By Paul B (Waukesha, WI) Reviewed for a 2015 Ford F-150 —8/23/2016 7:24 PM
It's a bit noisy at first until the muffler settles in but now she hums. It's not too loud on the highway either and there is no drone effect like the Flowmaster's. 70-75 MPH seems to be the sweet spot!!! Great American made product!!