- What Do You Drive?
We’re sorry. The information you have requested is temporarily unavailable.
Flowmaster Exhaust Systems Part #817669 Customer Reviews
18 Customer Reviews
Reviewed by George B (WEST CHESTER, PA) Reviewed for a 2017 Chevy Silverado — Dec 08, 2017 2:02 AM
I installed the flowmaster American thunder exhaust on my 2017 Silverado all went well, my truck sounds great and i did notice an increase in my gas mileage. The exhaust was easy to install, I opted for the side exit rather than the rear exit.
Reviewed by Gary S (Altura, MN) Reviewed for a 2017 GMC Sierra — Aug 11, 2017 6:07 PM
Reviewed by Brian C (GRAND RAPIDS, MI) Reviewed for a 2014 Chevy Silverado — May 05, 2017 3:28 AM
The clamps are not the greatest. Went with aftermarket. The sound is not over bearing at cruising speeds. You definitely notice the rumble when you get on it thou.If you can keep your foot out of it, the MPG'S do go up.
Reviewed by Brian F (WOODBURY, CT) Reviewed for a 2014 Chevy Silverado — Feb 28, 2017 7:28 AM
Exhaust system sounds great and was easy to install. I was disappointed with the clamps that came with it since they did not tighten down enough to hold the pipes in place. For a $750 system everything included should work as intended. I had to go to the auto parts store and purchase 5 cheap clamps as replacements. Other than that I would recommend the system.