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Your cart is empty.The Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range.
Badger
Reviewed in the United States on July 9, 2023
A great muffler to have, not too loud or too quite.
Customer lobokstyo
Reviewed in the United States on July 27, 2021
Love it! On my 2005 Silverado 5.3
J.M
Reviewed in the United States on June 23, 2017
Slightly seated edge. But was able to bend it to shape just fine. Sounds great on my 2016 veloster turbo r spec. . Takes nearly all the tinny noise out of my 3 inch exhaust, a little loud, but it's a straight through muffler, and is quieter than a glass pack would be. I'm very happy with it
Climber
Reviewed in the United States on August 8, 2016
Good product. Good seller. Pleasure to do business.Made my John Diesel diesel engine shut the f@##$$ up.
Adan jr
Reviewed in the United States on October 14, 2015
GOOD,
rob messenger
Reviewed in the United States on April 10, 2015
The only reason I didn't give it five stars is because it didn't install itself...and when I step on the gas can't make me 21 years old again.Other than that it's pretty much exactly what I was looking for. It has a nice low rumble, and when you step on it it sounds great..deep tone. But when you're just cruising down the road you really don't have to turn the radio up much more or talk louder. Low-end torque is noticeably better, and I'm getting a little better gas mileage. It has heavy duty construction..like I say it didn't install itself and there were times when I was tapping ( Tapping is a subjective term and may not hold up under cross-examination.) on the end of the body with a hammer to get it to slide onto the pipe and it did not phase the muffler. The black paint does scratch pretty easily....but I decided to install it underneath the truck so I really don't see it.
Bjorn Muskus
Reviewed in the United States on September 21, 2013
My Rotrex supercharged 4 cylinder expels a great deal of exhaust CFMs and decibels with a 3" straight pipe.In an effort to reduce the noise, a Flowmaster dBX was installed. The result was a significant reduction of noise, but regretfully also an unexceptable amount of horsepower and torque as well. The Flowmaster Pro Series was installed. The noticeable increase in flow, horsepower, and torque, far outweight the minor decibel increase over the dBX.I will confirm other reviews stating that the black powercoating scratches easily. Yet, it is a muffler, which will be mounted under your car probably never to be seen again.
Tony L Johnson
Reviewed in the United States on March 16, 2013
i was hoping with the small size it wasnt too load, worked nice in my application. i recommend it to anyone
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