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Plymouth Roadrunner Performance Mufflers

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Latest Customer Reviews

Flowmaster Original 40 Series Mufflers Reviews


What a Sound!

Reviewed By Rick M (Centralia, WA) Reviewed for a 1970 Plymouth Roadrunner —7/2/2008 6:40 AM

I installed the 40 Series with an X pipe on my 70 Roadrunner.It gives the term "American Muscle" a new meaning.What a sound.One of the best investments I made for my Roadrunner.You guys really came thru.Thanks,Rick

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Flowmaster Super 10 Series Mufflers Reviews


This thing is serious!

Reviewed By Michael G (MILFORD, MA) Reviewed for a 2012 Ford F-150 —6/12/2018 9:21 PM

Unbelievable sound and rumble! Love every second of my truck now!

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Gibson CFT Oval Superflow Mufflers Reviews


Sounds amazing!!!

Reviewed By John S (MYRTLE BEACH, SC) Reviewed for a 2013 Toyota 4Runner —5/11/2018 12:09 PM

I used a local muffler shop to install this, they did a good job though. My gas mileage has increased a good bit as well had an incremental increase in power and torque, it's hard, really, to gauge these without a dyno. It sounds great, everyone loves it. Most say it "sounds nothing like a 4Runner". My only complaint is the baffle within the muffler as this is a single entrance and exit muffler but the muffle itself has a dual chamber construction inside. Noise will be fixed with insulation.

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