Reviewed By Charmaine N (LOGAN, UT) Reviewed for a 2015 GMC Sierra —10/7/2015 10:51 PM
I love my Super 44 series Flowmaster muffler for my '15 GMC Sierra!! Sounds great! Awesome throaty tone! Big savings compared to else where!
Reviewed By Tim R (RADNOR, OH) Reviewed for a 2015 GMC Sierra —6/30/2015 5:52 AM
the 50 muffler is the right one for me and my sierra. it is just loud enough to let you know there is power under the hood, but it will not vibrate inside. unless you punch it, you would not notice it much. you can tell in normal driving it has more torque and horsepower.