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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 44 Series Mufflers Reviews


Sound

Reviewed By Homar B (Artesia, NM) Reviewed for a 2006 Ford F-150 —5/11/2018 6:31 AM

Upgraded my 5.4 3v F150 from 2.25" true dual exhaust with Dynatech max long tubes and cats with super 40s to 2.5" with high flow cats and super 44s. The sound isn't as loud but more throaty with a little more rumble and the interior resonance was reduced drastically. Exhaunt flows much better now. I can't tell if my low end torque changed much but passed 4000rpm there is a big difference.

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Year Range For Ford F-450/550 Performance Mufflers

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