Flowmaster

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Flowmaster Overview

Flowmaster Overview

Today, Flowmaster, Inc. is housed in two ultra-modern U.S. facilities together totaling over 400,000 sq. ft. Flowmaster operates the only exhaust Research & Design facility of its kind in the world. Through use of dynos, Flowmasters engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers to the ground. Flowmaster also utilizes Spectrum Analyzers to fine tune the sound of each of the eleven different series of mufflers that it currently offers, both for peak performance and just the right sound levels and tones.

942546 from Flowmaster

Super 44 Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 942546
Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler... more

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Starting At
$72.04

942548 from Flowmaster

Super 44 Muffler - 2.50 Offset IN / 2.50 Offset OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 942548
Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler... more

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Starting At
$55.00

42441 from Flowmaster

40 Series Muffler - 2.25 Offset IN / 2.25 Center OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 42441
The Original 40 Series muffler delivers an aggressive exterior and interior tone. If you're looking for that original " Flowmaster Sound " this is the muffler is for you. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum... more

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Starting At
$33.00

42443 from Flowmaster

40 Series Muffler - 2.25 Offset IN / 2.25 Offset OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 42443
The Original 40 Series muffler delivers an aggressive exterior and interior tone. If you're looking for that original " Flowmaster Sound " this is the muffler is for you. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum... more

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Starting At
$59.95

817461 from Flowmaster

Cat-back System 409S - Dual Rear Exit - Force II - Moderate Sound

Brand: Flowmaster
Auto Part #: 817461
For the person who is looking for a complete cat-back dual exhaust system with an quieter tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. Force II systems deliver a... more

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Starting At
$667.56

42541 from Flowmaster

40 Series Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 42541
The Original 40 Series muffler delivers an aggressive exterior and interior tone. If you're looking for that original " Flowmaster Sound " this is the muffler is for you. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum... more

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Starting At
$33.00

42543 from Flowmaster

40 Series Muffler - 2.50 Offset IN / 2.50 Offset OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 42543
The Original 40 Series muffler delivers an aggressive exterior and interior tone. If you're looking for that original " Flowmaster Sound " this is the muffler is for you. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum... more

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Starting At
$34.95

817479 from Flowmaster

Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

Brand: Flowmaster
Auto Part #: 817479
For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems... more

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Starting At
$640.98

817481 from Flowmaster

Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

Brand: Flowmaster
Auto Part #: 817481
For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems... more

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Starting At
$658.93

942448 from Flowmaster

Super 44 Muffler - 2.25 Offset IN / 2.25 Offset OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 942448
Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler... more

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Starting At
$70.93

17312 from Flowmaster

Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound

Brand: Flowmaster
Auto Part #: 17312
For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems... more

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Starting At
$389.99

430402 from Flowmaster

40 Series Muffler - 3.00 Center IN / 2.50 Dual OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 430402
The Original 40 Series muffler delivers an aggressive exterior and interior tone. If you're looking for that original " Flowmaster Sound " this is the muffler is for you. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum... more

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Starting At
$34.95

817496 from Flowmaster

Axle-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

Brand: Flowmaster
Auto Part #: 817496
These aggressive sounding systems are designed to replace original rear mounted mufflers located behind the rear axle using factory style connections. With easy fit in mind, these systems are mandrel bent for maximum performance and include... more

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Starting At
$348.00

942446 from Flowmaster

Super 44 Muffler - 2.25 Offset IN / 2.25 Center OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 942446
Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler... more

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Starting At
$59.99

817483 from Flowmaster

Axle-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

Brand: Flowmaster
Auto Part #: 817483
This aggressive sounding system is designed to replace the original rear mounted mufflers located behind the rear axle. With easy fit in mind, the system is mandrel bent for maximum performance and includes specially selected mufflers to support... more

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Starting At
$487.01

817477 from Flowmaster

Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

Brand: Flowmaster
Auto Part #: 817477
For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems... more

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Starting At
$630.98

817492 from Flowmaster

Cat-back System 409S - Dual Rear/Side Exit - Force II - Moderate Sound

Brand: Flowmaster
Auto Part #: 817492
Force II systems are for people who are looking for a complete cat-back dual exhaust system with a quieter tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. This system... more

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Starting At
$668.72

953046 from Flowmaster

Super 40 Muffler - 3.00 Offset IN / 3.00 Center OUT - Aggressive Sound

Brand: Flowmaster
Auto Part #: 953046
The Super 40 features Flowmaster's Delta Flow technology. It's larger case profile provides the best of both worlds of Performance and Sound. The Super 40 has that "deep powerful" sound of the original 40 series but with all the benefits of... more

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Starting At
$71.00

17112 from Flowmaster

Cat-back System - Dual Rear Exit - American Thunder - Aggressive Sound

Brand: Flowmaster
Auto Part #: 17112
For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems... more

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Starting At
$300.95

17119 from Flowmaster

Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive

Brand: Flowmaster
Auto Part #: 17119
For the person who is looking for a complete header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems... more

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Starting At
$412.62