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 donald d (FRESNO, TX) Reviewed for a 2014 Ford F-150 —7/8/2015 6:50 AM
The super 44 series flowmaster worked perfectly for what it is. I have a 2014 6.2l fx4 f150. The sound you get is amazing... although it's hardly louder than the super 40 series. So if you're going for loud I would go ahead and get the 10. My gas milage jumped up 2 miles per gallon. Great easy add on for any truck.