@
Otis857 @
AZEngineer
By just adding a catback exhaust will add some power and a slight increase in fuel economy (if you stay out of the gas pedal). As a standalone power add on to a Raptor however it won't be real noticeable. Now an intake, exhaust and a tuner would definitely be noticeable and also likely increase MPG dependent upon how you drive.
With the Dirty Deeds exhaust it is a lightning style and exits out by the rear passenger door. Bringing the pipe closer to the cab will increase overall 'noise' produced from the exhaust. We recommend the 20" muffler to those who are looking for a good growl when you get on the gas but also looking for a system really quiets down for cruising at highway speeds. Adding some basic sound deadener to the cab, doors, back wall, floor, etc is also a good way to keep the exhaust sound outside and your stereo inside. All of the mufflers 12" to 24" are louder than stock but again, exiting by the cab versus by the rear bumper plays into the increase in sound.
Will check into pricing for the helmholtz resonator as a stand alone sales item.