Reviewed By CUrt C (EAST PEORIA, IL) Reviewed for a 2010 Ford F-150 —8/28/2015 4:07 AM
Purchased the American thunder for my Ford F-150 and love the sound. Haven't been able to keep my foot off of it enough to see if there is an increase in mpg . Have felt a difference in throttle response when towing especially. Not too loud in cab but enough, wouldn't want anything louder.