Flowmaster 50 Series Delta Flow Muffler

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Fitment Info

Deep moderate tone Delta flow technology 3 chamber design Manufacturer warranty Made in the USA

Our #1 value is customer service.

We believe in doing right by our customers, no matter what it takes.

In keeping with that, we offer a “perfect fit guarantee” that ensures your satisfaction on 3 levels: low price, free shipping, and perfect fitment.

- Alan Marek, Founder of PartCatalog.com

The Lowest Price Anywhere--Guaranteed

At PartCatalog, we’ll beat any competing vendor’s price. And we’re so confident in our rock-bottom prices that we’ll refund the difference if you find a lower price elsewhere.

Free Shipping Both Ways

Our “free shipping both ways” policy means that returns and orders ship free of charge. When you place an order, you pay only the list price and any applicable taxes. We cover the shipping to save you money and ensure timely delivery.

100% Guaranteed to Fit

In the highly unlikely event of a fitment problem, we’ll return your purchase at no cost to you. We pay return shipping on all orders, so it won’t cost you a penny to send back a defective part.


  • High quality exhaust muffler that reduces exhaust noise
  • Deep moderate tone for a race-quality experience
  • Delta flow technology that optimizes performance with no internal resonance
  • Improved energy usage and improved mileage
  • Available in two constructions: stainless steel and aluminized steel
  • Manufacturer's guarantee of high quality and superior performance
  • Made in the USA with advanced technology and authentic materials
High quality exhaust muffers

High quality exhaust muffers

The Flowmaster 50 delta muffler offers excellent noise reduction properties and allows you to enjoy your ride better. It is affordable and made to serve you long beyond your expectations.

Deep moderate tone

Deep moderate tone

The muffler produces a deep moderate exterior tone with reduced interior noise. The smooth but deep drone should make your drive more comfortable and enjoyable.

Delta flow technology

Delta flow technology

The Delta flow technology significantly reduces the interior resonance which alternately reduces the interior noise levels.

3-chamber design

3-chamber design

This design allows optimum performance (as good as that of the two-chambered mufflers). It, however, has improved energy utility and efficiency. It also helps to improve aerodynamics and save on gas mileage.

Available in two constructions

Available in two constructions

The Flowmaster 50 delta muffler is available in both stainless steel and aluminized steel constructions. You can choose whichever construction best suits your car exhaust needs as well as your preference.

Manufacturer warranty

Manufacturer warranty

Flowmaster offers a limited lifetime warranty for every purchase of the stainless steel muffler, and a three-year warranty for the aluminized steel mufflers. This assures you that they are the very best in the industry.

Made in the USA

Made in the USA

The Flowmaster 50 delta mufflers are proudly made in the USA. Expert engineers and craftsmen manufacture them from locally made steel and process them with the country's finest technology. The company also employs thousands of Americans every year. Your purchase, therefore, helps to contribute to the growth of the American economy.

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Lifetime Limited Warranty applies to Flowmaster stainless steel mufflers (excluding FlowFX series).
Three (3) Year Limited Warranty applies to Flowmaster aluminized steel mufflers.
Part Numbers

The following part numbers are available in this product line:

842451, 842452, 842453, 842551, 842553, 843051, 942051, 942451, 942452, 942453, 942550, 9425502, 942551, 942553, 9430522, 943053

To purchase this product for your vehicle, please select the Year, Make and Model of your vehicle at the top of this page.

Buick (1975-1987)

Regal, Skylark

Cadillac (1993-1999)

DeVille, Eldorado, Seville

Chevrolet (1963-2015)

Beretta, Blazer, C10, C10 Suburban, C1500, C20, C2500, C30, Camaro, Caprice, Chevelle, Colorado, Corvette, El Camino, Impala, K10, K10 Suburban, K20, K2500, K30, K3500, K5 Blazer, Malibu, Monte Carlo, R10, S10, S10 Blazer, V30, V3500

Chrysler (1987-2013)

300, Daytona, PT Cruiser

Dodge (1962-2014)

Challenger, Charger, Coronet, D100, D150, D200, D250, D300, D350, Dakota, Dart, Daytona, Magnum, Neon, W100, W150, W200, W250, W300, W350

Ford (1960-2013)

Bronco, Crown Victoria, E-350 Econoline Club Wagon, Escort, Expedition, Explorer, Explorer Sport Trac, F-150, F-150 Heritage, F-250, F-250 Super Duty, F-350, F-350 Super Duty, Fairlane, Focus, Freestar, Fusion, Galaxie, Gran Torino, Mustang, Ranger, Taurus, Thunderbird, Torino

GMC (1973-1995)

C15 Suburban, C15/C1500 Suburban, C1500, C1500 Suburban, C2500, C3500, Jimmy, K15 Suburban, K15/K1500 Suburban, K1500, K1500 Suburban, K2500, K3500, V3500

Honda (1986-2004)

Accord, Civic, Prelude

Jeep (1979-1998)

Cherokee, CJ5, CJ7, Grand Cherokee, Wrangler

Lincoln (1998-2002)


Mercury (1967-1974)


Nissan (1986-2007)

Altima, Armada, D21, Maxima, NX, Pathfinder Armada, Pickup

Oldsmobile (1973-1988)

Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme

Plymouth (1962-1974)

Barracuda, Belvedere, Belvedere II, Duster, GTX, Roadrunner, Satellite, Scamp

Pontiac (1967-2007)

Firebird, Grand Am, Grand LeMans, Grand Prix, LeMans

Subaru (2000-2001)


Toyota (1984-2006)

Celica, Pickup, Supra, Tacoma, Tundra

Volkswagen (1993-1997)


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