Flowmaster Pro Series Muffler

Marsoni

M251S

$274.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Flowmaster Pro Series MufflerThe Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range. Features: High horsepower apps include diesels RVs trucks Durable fully welded 16 gauge

Easy Shipping

Quick Dispatch:

Your Flowmaster Pro Series Muffler orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Flowmaster Pro Series Muffler ships.

Need Help?
Questions about Flowmaster Pro Series Muffler, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Flowmaster Pro Series Muffler in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 4, 2026