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Ford F-450/550 Performance Mufflers

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Latest Customer Reviews

Flowmaster Street Performance Mufflers Reviews


Flowmaster 70

Reviewed By Tim W (MORIARTY, NM) Reviewed for a 1999 Ford F-450/550 —3/27/2014 12:31 PM

I installed the Banks headers on my 99 Class A MH and wasn't about to spend another $500 to replace a perfectly good exhaust pipe. The muffler had to go though! I purchased the Flowmaster 70 series to replace just muffler since this was the last culprit of restriction in the stock exhaust. I wanted a quiet but unrestricted muffler and I got exactly that. It has a deeper sound than the stock but it's still quiet. It fit perfectly and a great price as well. Tim

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Flowmaster Original 40 Series Mufflers Reviews


Flowmaster 40

Reviewed By Larry B (Garden City, KS) Reviewed for a 1990 Ford F-450/550 —3/1/2014 6:20 AM

Best thing I can say about the Flowmaster is that it was made in the USA. Good product; easy install, affordable, got to me in reasonable amount of time. Thanks

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Flowmaster Super 10 Series Mufflers Reviews


Great muffler, Great price

Reviewed By Jacob S (BELLEVILLE, MI) Reviewed for a 2014 Ford F-150 —1/11/2017 2:25 PM

Bout this for my '14 150 5.0. Someone I know in my family has this on their ram and it sounded great so I decided to get one for my truck. Deleted my resonator and replaced this for the muffler and I am very happy. It was obnoxiously loud for a week and since then it has broken in and quieted up a little. Also has made my truck gain quite a bit in fuel economy even in the cold weather.

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