Reviewed By Tommy L (OZARK, AL) Reviewed for a 2009 Ford F-150 —2/24/2014 8:06 PM
Great sound. Not to loud & not to quiet. Just right in my opinion.
Reviewed By Mark M (Ada, OK) Reviewed for a 2009 Ford F-150 —9/13/2009 4:52 PM
Had my Flowmaster 40 Series Delta Flow installed at a local muffler shop and what a difference!! I used my stock exhaust pipe and reconnected the stock tailpipe as well and am not diappointed. It took just a bit to get used to the markedly increase exhaust note but it sounds great! Very deep tone with just a slight amount of interior resonance around 2000rpm.
Reviewed By ryan h (Lamesa, TX) Reviewed for a 2014 Ford F-150 —2/26/2015 2:59 PM
The sound is awesome, mellow at idle with an aggressive growling rumble on acceleration that mellows out again at cruising speed. I would leave the stock resonator in because there is a slight 1700-2000 rpm drone if you don't. The truck gets plenty of compliments on the sound and has more low end torque.