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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


love the sound

Reviewed By Brian E (LAS VEGAS, NV) Reviewed for a 2006 Ford Expedition —6/29/2015 10:51 PM

Recieved the muffler in two days. Had it installed the next day. the sound is loud and powerful, most of my friends have said it makes my Expedition sound like a Shelby Mustang. I have seen an increase in power and torque. Dont know if theres an increase in MPG because I lay my foot into it a bit more now just to hear that beautiful growl

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Flowmaster Super 44 Series Mufflers Reviews


Good quality, nice sound!

Reviewed By William H (Taftville, CT) Reviewed for a 2009 Ford F-150 —6/28/2015 6:21 AM

Solidly built muffler, the inlet & outlet ports are true to size so installation was a breeze. Excellent sound with that rumble I was looking for! I would recommend this muffler if you want your ride to sound a little meaner!

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