100 Stony Point Rd
Suite #125
Santa Rosa , California 95401


  Phone:  (707) 544-4761
  Fax:  (707) 544-4784


About:
35 years ago, Flowmaster® mufflers were conceived as a solution to a growing problem with sound issues at race tracks in California and beyond. In his successful effort to quiet race cars without reducing performance, our founder refused to accept the status quo of the day and instead pushed exhaust technology beyond common thinking. This led to many firsts in automotive exhaust science, as well as many patents protecting the various technologies used in Flowmaster® products. With those developments, Flowmaster® ushered in a revolution in automotive performance exhaust. For years, Flowmaster® has been committed to delivering the best automotive exhaust products to the market and being "The Exhaust Technology Company." Our mission has always been to bring you the highest quality exhaust products through innovation, advance manufacturing experience and dedication to customer service and satisfaction. Now, we're taking that mission statement to the next level by offering exciting new product categories to enhance our exhaust offerings. We now offer Delta Boost tuners for turbo-charged applications and Delta Force® performance air intake systems for numerous late model applications. These new offerings have been designed and tuned to work in combination with our tested and proven exhaust products to maximize your vehicle's performance. Now you can pick up an entire performance package in one place and from a company with a name you know you can trust, Flowmaster. Like today's cars, trucks, SUV's, Jeeps and UTV's we too have evolved. Our new mission is to be "The Performance Technology Company." Our R&D department is headed by long time Flowmaster® exhaust expert and V.P. of R&D, Lee Thompson. Lee and his team work tirelessly to bring new exhaust systems, mufflers and exhaust products that are specially fitted and tested for most popular brands and models to market. Our dedicated R&D team continuously monitors the performance of our exhaust products. They also design, engineer and test new products to expand our offerings into exciting new categories for your vehicle. These additions, along with more to come, not only make up the commitment of our R&D department, but the total commitment of all our departments and employees as a whole. We are automotive enthusiasts and want to ensure you're getting the most for your money. By offering only the highest quality, tested and proven products on the market, Flowmaster® provides maximum performance for your vehicle and the biggest bang for your buck. Deep into the 21st Century, Flowmaster® has continued to embrace new technologies in the automotive world, while continuing to deliver outstanding sound and performance benefits to all types of vehicles from our legendary chambered and laminar flow mufflers to our FlowFX straight-through designs. From our state-of-the-art Research and Development Center, new products and applications are regularly introduced. From mufflers to high flow catalytic converters, high performance headers, performance air intake systems, tuners, and a full line of carefully engineered bolt-on exhaust systems, we've got you covered. Applications for Flowmaster® technology range from modern sub-compact cars to turbo-diesel trucks, SXS's and UTV's, as well as almost every racing class and category from vintage classes to Jeep and off-road, and the most modern small displacement, turbo-charged applications. Flowmaster® has the ideal exhaust and performance solutions for you. Please browse through our website and call our dedicated tech line at (707) 544-4761 with any questions you may have. As automotive technology continues to advance, our commitment to developing the newest and best performance products is stronger than ever. For whatever you drive now and in the future, Flowmaster® will have the most advanced performance products available.



Fitment: Maybe

Flowmaster 942442 2.25 IN(C)/OUT(O) 40 SER..

40 Series™ Delta Flow Muffler; 2.25 in. Center Inlet/Offset Outlet; Case Dimensions 4 in. x 9.75 in...

$112.84

Fitment: Universal

Flowmaster 843015 3 IN(C)/3 OUT(C) SUPER 1..

Super 10 Series™ Muffler; 3.0 in. Center Inlet/Center Outlet; Case Dimension 4 in. x 9.5 in. x 6.5 i..

$89.46

Fitment: Maybe

Flowmaster 842583 2.5IN(O)/DUAL OUT 80 SER..

80 Series™ Cross-Flow Muffler; 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.5 in. x 1..

$145.85

Fitment: Maybe

Flowmaster 842553 2.5 IN(O)/OUT(O) 50 SERI..

50 Series™ Delta Flow Muffler; 2.5 in. Offset Inlet/Opposite Side Offset Outlet; Case Dimensions 4 i..

$145.85

Fitment: Maybe

Flowmaster 842551 2.5 IN(O)/OUT(C) 50 SERI..

50 Series™ Delta Flow Muffler; 2.5 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. ..

$145.85

Fitment: Maybe

Flowmaster 842546 2.5 IN(O)/OUT(C) SUPER 4..

Super 44™ Delta Flow Muffler; 2.5 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x..

$109.38

Fitment: Universal

Flowmaster 8425454 2.5 IN(D)/2.5 OUT(D) SU..

Super 44 Series Muffler; 2.5 in. Inlet/Outlet; Case Dimension 4 in. x 9.75 in. x 13 in.; Dual Inlet/..

$109.38

Fitment: Maybe

Flowmaster 842543 2.5 IN(O)/OUT(O) DELTA 4..

40 Series™ Delta Flow Muffler; 2.5 in. Offset Inlet/Opposite Side Offset Outlet; Case Dimensions 4 i..

$125.14

Fitment: Maybe

Flowmaster 842541 2.5 IN(O)/OUT(C) DELTA 4..

40 Series™ Delta Flow Muffler; 2.5 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. ..

$125.14

Fitment: Maybe

Flowmaster 842518 2.5 IN(O)/2.5 OUT(O) SUP..

Super 10 Series™ Muffler; 2.5 in. Offset Inlet/Offset Outlet; Case Dimension 4 in. x 9.5 in. x 6.5 i..

$89.46

Fitment: Universal

Flowmaster 8425152 2.5 IN(C)/2.25 OUT(D) S..

Super 10 Series™ Muffler; 2.5 in. Center Inlet/2.25 in. Dual Outlets; Case Dimension 4 in. x 9.5 in...

$89.46

Fitment: Universal

Flowmaster 842515 2.5 IN(C)/2.5 OUT(C) SUP..

Super 10 Series™ Muffler; 2.5 in. Center Inlet/Center Outlet; Case Dimension 4 in. x 9.5 in. x 6.5 i..

$89.46

Fitment: Maybe

Flowmaster 842453 2.25 IN(O)/OUT(O) 50 SER..

50 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Opposite Side Offset Outlet; Case Dimensions 4 ..

$145.85

Fitment: Maybe

Flowmaster 842452 2.25 IN(C)/OUT(O) 50 SER..

50 Series™ Delta Flow Muffler; 2.25in. Center Inlet/Offset Outlet; Case Dimensions 4 in. x 9.75 in. ..

$145.85

Fitment: Maybe

Flowmaster 842451 2.25 IN(O)/OUT(C) 50 SER..

50 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in...

$145.85

Fitment: Maybe

Flowmaster 842448 2.25 IN(O)/OUT(O) SUPER ..

Super 44™ Delta Flow Muffler; 2.25 in. Offset Inlet/Opposite Side Offset Outlet; Case Dimensions 4 i..

$109.38

Fitment: Maybe

Flowmaster 817845 17-19 CHARGER 5.7L OTL S..

Outlaw Series™ Cat Back Exhaust System; Dual; Dual OEM Rear Exit; Incl. 3 in. Tubing/Racing Mufflers..

$1,332.26

Fitment: Maybe

Flowmaster 817844 18-20 JEEP WRANGLER JL 3..

Outlaw Series™ Cat Back Exhaust System; Single; Dual Split Out Rear; Incl. 2.5 in. Tubing/Muffler/Tu..

$806.15

Fitment: Maybe

Flowmaster 8430402 3 IN(C)/2.5 OUT(D) DELT..

40 Series™ Delta Flow Muffler; 3.0 in. Center Inlet/2.5 in. Dual Outlet; Case Dimensions 4 in. x 9.7..

$125.14

Fitment: Maybe

Flowmaster 843041 3 IN(O)/OUT(C) DELTA 40 ..

40 Series™ Delta Flow Muffler; 3.0 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. ..

$125.14

Fitment: Maybe

Flowmaster 942441 2.25 IN(O)/OUT(C) 40 SER..

40 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in...

$112.84

Fitment: Universal

Flowmaster 942440 2.25 IN(C)/OUT(C) 40 SER..

40 Series™ Delta Flow Muffler; 2.25 in. Center Inlet/Outlet; Case Dimensions 4 in. x 9.75 in. x 13 i..

$112.84

Fitment: Maybe

Flowmaster 942051 2IN(O)/OUT(C) 50 SERIES ..

50 Series™ Delta Flow Muffler; 2 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x ..

$124.55

Fitment: Maybe

Flowmaster 942043 2 IN(O)/OUT(O) 40 SERIES..

40 Series™ Delta Flow Muffler; 2 in. Offset Inlet/Opposite Side Offset Outlet; Case Dimensions 4 in...

$112.84

Fitment: Maybe

Flowmaster 942042 2 IN(C)/OUT(O) 40 SERIES..

40 Series™ Delta Flow Muffler; 2 in. Center Inlet/Offset Outlet; Case Dimensions 4 in. x 9.75 in. x ..

$112.84

Fitment: Maybe

Flowmaster 942041 2 IN(O)/OUT(C) 40 SERIES..

40 Series™ Delta Flow Muffler; 2 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x ..

$112.84

Fitment: Maybe

Flowmaster 942040 2 IN(C)/OUT(C) 40 SERIES..

40 Series™ Delta Flow Muffler; 2 in. Center Inlet/Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.;..

$112.84

Fitment: Maybe

Flowmaster 853548 3.50" IN(O)/OUT(O) SUPER..

Super 40™ Delta Flow Muffler; 3.5 in. Offset Inlet/3.5 Offset Outlet; Case Dimensions 5 in. x 10 in...

$157.57

Fitment: Maybe

Flowmaster 853046 3 IN(O)/OUT(C) SUPER 40 ..

Super 40™ Delta Flow Muffler; 3.0 in. Offset Inlet/Center Outlet; Case Dimensions 5 in. x 10 in. x 1..

$124.55

Fitment: Maybe

Flowmaster 8530452 3 IN(C)/2.5 OUT(D) SUPE..

Super 40™ Delta Flow Muffler; 3.0 in. Center Inlet/2.5 in. Dual Outlet; Case Dimensions 5 in. x 10 i..

$135.20

Fitment: Maybe

Flowmaster 8525554 2.50"IN(D)/2.50"OUT(D) ..

50 Series™ Heavy Duty Muffler; 2.5 in. Dual Inlet/2.5 in. Dual Outlet; Case Dimensions 5 in. x 10 in..

$257.68

Fitment: Maybe

Flowmaster 852548 2.5 IN(O)/OUT(O) SUPER 4..

Super 40™ Delta Flow Muffler; 2.5 in. Offset Inlet/Opposite Side Offset Outlet; Case Dimensions 5 in..

$124.55

Fitment: Maybe

Flowmaster 852546 2.5 IN(O)/OUT(C) SUPER 4..

Super 40™ Delta Flow Muffler; 2.5 in. Offset Inlet/Center Outlet; Case Dimensions 5 in. x 10 in. x 1..

$124.55

Fitment: Universal

Flowmaster 8430502 3 IN(C)/2.5 OUT(D) 50 S..

50 Series™ Delta Flow Muffler; 3.0 in. Center Inlet/2.5 in. Dual Outlet; Case Dimensions 4 in. x 9.7..

$145.85

Fitment: Maybe

Flowmaster 843048 3 IN(O)/OUT(O) SUPER 44 ..

Super 44™ Delta Flow Muffler; 3.0 in. Offset Inlet/3 in. Opposite Side Offset Outlet; Case Dimension..

$109.38

Fitment: Maybe

Flowmaster 843046 3 IN(O)/OUT(C) SUPER 44 ..

Super 44™ Delta Flow Muffler; 3.0 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x..

$109.38

Fitment: Maybe

Flowmaster 8430452 3 IN(C)/2.5 OUT(D) SUPE..

Super 44™ Delta Flow Muffler; 3.0 in. Center Inlet/2.5 Dual Outlet; Case Dimensions 4 in. x 9.75 in...

$109.38

Fitment: Maybe

Flowmaster 817750 15-20 MUSTANG BASE 2.3L ..

American Thunder Cat Back Exhaust System; Dual; Dual Out Rear Exit; 2.25/3.0 in. Tubing/Outlaw Muffl..

$895.61

Fitment: Maybe

Flowmaster 817736 09-14 CHALLENGER RT 5.7L..

Outlaw Series™ Axle Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Outlaw™ Mufflers..

$638.95

Fitment: Maybe

Flowmaster 817729 12-18 JEEP WRANGLER JK 3..

Force II Axle Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/80 Series™ Crossflow M..

$569.05

Fitment: Maybe

Flowmaster 817539 11-14 F150 V6 ECO FII DO..

Force II Cat Back System; Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Pro Series™ Muffler..

$970.16

Fitment: Maybe

Flowmaster 817522 09-14 FORD F150 V8 AMT D..

American Thunder Cat Back Exhaust System; Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Sup..

$766.75

Fitment: Maybe

Flowmaster 817516 11-12 MUSTANG GT AB OTL ..

Outlaw Series™ Axle Back Exhaust System; Dual; Dual Rear Exit; Incl. 3.0 in. Tubing/Outlaw™ Mufflers..

$516.47

Fitment: Maybe

Flowmaster 817511 05-10 MUSTANG GT 4.6L AB..

Outlaw Series™ Axle Back Exhaust System; Dual; Dual Rear Exit; Incl. 3.0 in. Tubing/Outlaw™ Mufflers..

$511.15

Fitment: Maybe

Flowmaster 817509 09-14 FORD F150 FII SOS ..

Force II Cat Back System; Dual; Single Side Exit; Incl. 3.0 in. Tubing/Super 50 Series™ Muffler/3.5 ..

$671.96

Fitment: Maybe

Flowmaster 817507 03-12 RAM 2500/3500 5.7L..

American Thunder Cat Back Exhaust System; Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/50 ..

$783.79

Fitment: Maybe

Flowmaster 817502 11-14 300/CHARGER 5.7L F..

Force II Cat Back System; Dual; Dual Rear Exit; Incl. 2.5 in. Outlet/Super 44 Series™ Mufflers/Scave..

$995.72

Fitment: Maybe

Flowmaster 817499 08-14 CHALLENGER SRT8 AM..

American Thunder Cat Back Exhaust System; Dual; Dual Rear Exit; Incl. 3.0 in. Tubing/Super 40 Series..

$1,152.59

Fitment: Maybe

Flowmaster 817494 05-10 MUSTANG 3" CAT-BAC..

American Thunder Cat Back Exhaust System; Dual; Dual Rear Exit; Incl. 3.0 in. Tubing/Special Build 6..

$979.75

Fitment: Maybe

Flowmaster 817492 07-13 GM 1500 5.3L FII D..

Force II Cat Back System; Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Outlets/Super 50 Series™ Muf..

$851.95

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