Flowmaster 40 Series Delta Flow Muffler
- Delta flow exhaust muffler
- Mild to moderate aggressive tone
- Two chamber design
- Available in two materials
- Fully welded and durable material
- Made in the USA
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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.
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Fitment Note:
- High performance and efficient delta flow technology
- Baffled internal chamber with impressive horse power with unlimited exhaust flow
- Mild to moderate aggressive tone for the ultimate thrill
- Two chamber design ideal for dual-exhaust and off-road vehicles
- Available in two materials: stainless steel and aluminized steel
- Fully welded and durable material for strength and toughness
- Manufacturer's warranty that guarantees quality with no defects
- Made in the USA with authenticity and quality

Delta flow exhaust muffler
The Flowmaster delta flow muffler uses the delta flow technology to ensure that you get optimum performance without too much resonance. It reduces interior exhaust noises for a quieter and more comfortable ride.

Optimum performance
The baffled internal chamber allows optimal horsepower without restricted exhaust flow. This allows maximum performance and ensures that you get the most out of your muffler for the ultimate driving experience.

Mild to moderate aggressively tone
The muffler lets out mild to moderately loud sounds. This makes for a more comfortable ride with the full thrill of an aggressive engine.

Ideal for dual-exhaust vehicles
The two-chamber design makes the Flowmaster delta flow muffler particularly ideal for dual-exhaust vehicles. It is also perfect for street cars and trucks.

Available in two options
The mufflers are available in either stainless steel or aluminized steel. Choose the construction that best suits your car exhaust needs.

Fully welded and durable to last long
The crafters fully weld the muffler so that it stays tough and lasts long. The steel is resistant to corrosion and rust, so you are assured of full service for years as long as you practice proper care and maintenance.

Manufacturer's guarantee of quality
The manufacturer provides a limited lifetime warranty for every purchase of the stainless steel mufflers, and a three-year warranty for the aluminized steel mufflers. It is a guarantee that they are made with quality, will provide optimum performance, and have no defects.

Made in the USA
The Flowmaster delta flow muffler is proudly made in the USA. The manufacturer tests the material thoroughly to ensure authenticity and performance. The industry employs thousands of Americans every year, ideally contributing to the growth of the economy.
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Three (3) Year Limited Warranty applies to Flowmaster aluminized steel mufflers.
The following part numbers are available in this product line:
To purchase this product for your vehicle, please select the Year, Make and Model of your vehicle at the top of this page.
Acura (1990-1995)
Integra, Legend
Buick (1964-1987)
Gran Sport, GS, GS 350, GS 400, GS 455, Regal, Skylark
Chevrolet (1955-2013)
Bel Air, Biscayne, Blazer, C10, C1500, C20, C2500, C30, Camaro, Caprice, Chevelle, Chevy II, Cobalt, Corvette, Del Ray, El Camino, Impala, K10, K1500, K20, K2500, K30, K3500, K5 Blazer, Malibu, Monte Carlo, Nova, R10, R10 Suburban, R1500 Suburban, R20, R2500, R30, S10, SSR, Two-Ten Series, V10, V10 Suburban, V1500 Suburban, V20, V20 Suburban, V30
Chrysler (2001-2013)
300, Aspen, PT Cruiser
Dodge (1962-2014)
Challenger, Charger, Coronet, D100, D150, D250, D300, D350, Dakota, Dart, Durango, Magnum, Neon, Ram 1500, Ram 2500, Ram 3500, W100, W150, W250, W350
Ford (1960-2015)
Bronco, Crown Victoria, Escort, Excursion, Expedition, Explorer, Explorer Sport Trac, F-150, F-150 Heritage, F-250, F-250 HD, F-250 Super Duty, F-350, F-350 Super Duty, Focus, Fusion, Galaxie, Mustang, Probe, Ranger, Taurus, Thunderbird
GMC (1973-1999)
C1500, C2500, Jimmy, K1500, K2500, K3500, R1500 Suburban, R2500, V1500 Suburban, Yukon
Honda (1986-2005)
Accord, Civic, CRX, Prelude
Jeep (1979-2000)
Cherokee, CJ5, CJ7, Grand Cherokee, TJ, Wrangler
Lincoln (1998-2010)
Navigator
Mazda (1990-1995)
Miata
Mercedes-Benz (2006)
CL500
Mitsubishi (1990-2007)
Eclipse, Lancer
Nissan (1986-2007)
720, Altima, Armada, D21, Maxima, NX, Pathfinder Armada, Pickup
Oldsmobile (1964-1986)
442, Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme
Plymouth (1965-1974)
Barracuda, Satellite
Pontiac (1964-1981)
Firebird, Grand Am, GTO, LeMans
Subaru (2001-2007)
Impreza
Toyota (1984-2007)
Celica, Matrix, Pickup, Solara, Supra, Tacoma, Tundra
Volkswagen (1985-1997)
Golf, Jetta