Flowmaster 40 Series Delta Flow Muffler

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  • Two-chamber design
  • Features Delta Flow technology
  • Constructed from stainless steel
  • Sold individually

If you want a powerful exhaust muffler without the roaring inside your vehicle, the Flowmaster 40 Series is the perfect choice for you.

With the 40 Series from FlowMaster, you get a solid stainless steel construction that is built to last. Plus, you get better horsepower and torque that you will surely appreciate. The power that you need is right here!

One of the best things about this is that with this equipped, you acquire the signature Flowmaster sound - superior reductions in exterior sound levels and resonance. Ideal for those who are looking just for the right “roar.”

All of this is thanks to the Delta Flow technology combined with deflectors that are engineered for the most power. With this, you get the performance and a quite interior sound with our sacrificing that powerful exterior sound levels.

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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:
842541 842543 8430402 843041 942040 942041 942042 942043 942441 942442 942443 942444 942541 942542 942543 9430402 943041 9430422 943043
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