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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 44 Series Mufflers Reviews


2001 Jeep Grand Cherokee 4.7

Reviewed By Charles F (Sheboygan, WI) Reviewed for a 2001 Jeep Grand Cherokee —3/26/2017 6:27 AM

Took it to the local muffler shop to get it welded on, sounds great.

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Flowmaster Super 40 Series Mufflers Reviews


2005 Pontiac GTO 6 Speed

Reviewed By RENE S (Arlington, TX) Reviewed for a 2005 Pontiac GTO —3/24/2017 6:48 AM

These Super 40's really woke the car up. Very noticeable gain in acceleration. I also had my muffler shop install an X-Pipe and wow did this pairing wake this GTO up. Spent half of what a cat back system would of cost.

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