Flowmaster 40 Series Delta Flow Muffler

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  • 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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    • 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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    Lifetime Limited Warranty applies to Flowmaster stainless steel mufflers (excluding FlowFX series).
    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)


    Mazda (1990-1995)


    Mercedes-Benz (2006)


    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)


    Toyota (1984-2007)

    Celica, Matrix, Pickup, Solara, Supra, Tacoma, Tundra

    Volkswagen (1985-1997)

    Golf, Jetta