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Flowmaster Pro Series Mufflers

4 Reviews
$114.00 - $258.00 each
List Price
$101.95 - $231.95 each
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  • Dial up your performance without an overpowering tone by adding the Flowmaster Pro Series Muffler to your ride
  • Delivers the feel of running straight headers while producing a mellower sound
  • The perfect match for high-horsepower SUVs, diesel trucks and RVs
  • Equipped with Flowmaster's exclusive Laminar Flow™ technology
  • Built tough with stainless steel guts packed into an 16-gauge aluminized steel case
  • Available in a range of sizes to fit everything from 3" to 5" piping
  • Your Flowmaster Pro Series Muffler is backed by a limited Lifetime Warranty

Running straight headers might give you the edge at the track, but missing mufflers on your daily driver makes you a pariah in your neighborhood. Fortunately, you can tap into the raw power of an unrestrained exhaust without worrying about the Jones' leaving flaming bags of poodle patties on your doorstep—you just need Flowmaster Pro Series Mufflers.

Maximum performance and a mellowed-out aggressive tone are the hallmarks of the Flowmaster Pro Series Muffler. The patented Laminar Flow design keeps hot gases racing along at warp speed—all while turning down the volume on your engine's natural roar. Not only do you experience hotter horsepower, but you still get invited to your cul-de-sac's block parties.

Universally sized to fit a host of stock and aftermarket exhausts, Flowmaster Pro Mufflers pair perfectly with high-powered SUVs, diesel rigs and RVs. Plus, their sturdy stainless steel internals and 16-gauge aluminized casing make them sturdy enough for track and off-road use. To top it off, Flowmaster backs your performance muffler with a limited Lifetime Warranty.

  • ATTN: State of California Consumers
    warning symbolWARNING: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects, or other reproductive harm (For more information go to
Average Rating
Ease of Installation
4 Customer Reviews
5 Star
3 (75%)
4 Star
0 (0%)
3 Star
1 (25%)
2 Star
0 (0%)
1 Star
0 (0%)

Smith trucking

It works excellent on a 660 Kenworth 475 cat
Ease of Installation
Posted By Jefferson H S (Wheelersburg, OH) / August 9, 2017

Quiet Power

I have a MBRP 4 inch system on my 2016 Ford F150 3.5 ecoboost, System gives great power but is loud as heck. When the original MBRP Muffler split at the seams I decided to give this a try. It's perfect. No raspy ricer whine or drone, It's deep and throaty, and not loud. Doesn't sound like a V8 obviously, but doesn't sound like Ricer Crap either.
Posted By Carroll J (Palm Springs, FL) / May 14, 2017
2016 Ford F-150

I was pleasantly surprised at tone and power

I put the pro series muffler on 2006 dodge 2500 cummins diesel pickup that has a 5in exhaust from the turbo back. (( the cat has been removed)) previous muffler had way to much drone in the cab it was very bad. Placed an order with auto anything had my muffler in 3 day had it put on and Boom , No Drone Quite cab and great power I mean power you can feel through out the power band IMy truck make about 450Hp and I love this pro series muffler
Posted By Joseph P (Fort Washington, MD) / July 31, 2016
2017 Dodge Challenger

Exhaust drone

Trying to reduce drone in my truck especially towing. Temporarily mounted the Pro at the end of the tailpipe. Measured sound reduction at 3-4 dB with some drone reduction. Not the final answer when dealing with the drone issue.
Posted By Robert M (PORTLAND, OR) / December 28, 2015
2014 GMC Sierra