-10%
400940.jpg 400940_2.jpg Quick View

Borla Crate Muffler - S-Type (400940)

$380.99
$340.99
BDLS_400940
Borla Exhaust Mufflers
Borla CrateMuffler Big Block Chrysler/ Dodge / Plymouth (Mopar) Moderate Output 383/ 413/ 426/ 440 CID S-Type (400940)BORLA's CrateMuffler is the world's first muffler...
-10%
400942.jpg 400942_2.jpg Quick View

Borla Crate Muffler - S-Type (400942)

$376.99
$336.99
BDLS_400942
Borla Exhaust Mufflers
Borla CrateMuffler Big Block Chrysler/ Dodge / Plymouth (Mopar) Moderate Output 383/ 413/ 426/ 440 CID S-Type (400942)BORLA's CrateMuffler is the world's first muffler...
-11%
40722.jpg Proposition 65 Warning.JPG Quick View

Borla XR1 Multicore Muffler (40722)

$338.99
$299.99
BDLS_40722
Borla Exhaust Mufflers
Borla XR-1 Stainless Multicore Racing Mufflers. (40722)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
40086.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40086)

$173.99
$155.99
BDLS_40086
Borla Exhaust Mufflers
Borla XR-1 Sportsman 3.5" Center-Center 15"x5" Round - Racing Muffler. Universal part. Reversible design for installation flexibility. (40086)BORLA's XR-1® raceline products are the choice...
-10%
400939.jpg Proposition 65 Warning.JPG Quick View

Borla Resonator - CrateMuffler / Universal (400939)

$183.99
$164.99
BDLS_400939
Borla Exhaust Mufflers
Borla CrateMuffler Resonator Option 3". Universal Part. Reversible Design For Installation Flexibility. (400939)BORLA® Universal Resonators are ideal for taking a loud system down a...
-10%
40664.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40664)

$144.99
$129.99
BDLS_40664
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 2.25 in. Center Inlet; 2.25 in. Offset Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-17%
400837.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400837)

$385.99
$318.99
BDLS_400837
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Small Block Stock Output 289/302/351W CID S-Type. (400837)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-17%
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Borla Crate Muffler - S-Type (400944)

$429.99
$354.99
BDLS_400944
Borla Exhaust Mufflers
Borla CrateMuffler Chevrolet Stock Output LS3 6.2L S-Type (400944)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate...
-10%
400946.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400946)

$354.99
$316.99
BDLS_400946
Borla Exhaust Mufflers
Borla CrateMuffler Chevrolet Stock Output LS3 6.2L S-Type (400946)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate...
-10%
400851.jpg 400851_vehicle.jpg Quick View

Borla Crate Muffler - S-Type (400851)

$347.99
$310.99
BDLS_400851
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Big Block Stock Output 396/402/427 CID S-Type (400851)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
40641.jpg Proposition 65 Warning.JPG Quick View

Borla XR1 Multicore Bullet Muffler (40641)

$231.99
$207.99
BDLS_40641
Borla Exhaust Mufflers
Borla XR-1 Stainless Racing Bullet Mufflers. (40641)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-17%
40948.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40948)

$262.99
$216.99
BDLS_40948
Borla Exhaust Mufflers
Borla XR-1 Stainless Sportsman Racing Mufflers. (40948)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
40357.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40357)

$125.99
$112.99
BDLS_40357
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 2.25 in. Center Inlet; 2.25 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in....
-10%
40658.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40658)

$127.99
$114.99
BDLS_40658
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 2.25 in. Offset Inlet; 2.25 in. Center Outlet; 14 in. x 4.25 in. x 7.88 in. Oval Body; 19 in....
-16%
40941.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40941)

$179.99
$149.99
BDLS_40941
Borla Exhaust Mufflers
Borla XR-1 Stainless Sportsman Racing Mufflers. (40941)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
400852.jpg 400852_1.jpg Quick View

Borla Crate Muffler - ATAK (400852)

$309.99
$276.99
BDLS_400852
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Big Block Stock Output 396/402/427 CID ATAK. (400852)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
401339.jpg Proposition 65 Warning.JPG Quick View

Borla Universal Resonator Muffler Without Notch (401339)

$146.99
$131.99
BDLS_401339
Borla Exhaust Mufflers
Borla Universal Resonator Muffler 3.00" In/Out Rd 5"X10" Without Notch. (401339)BORLA Universal Resonators are ideal for taking a loud system down a notch. They...
-10%
40351.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40351)

$135.99
$121.99
BDLS_40351
Borla Exhaust Mufflers
Borla ProXS Muffler; Offset/Offset; 2.25 in. Offset Inlet; 2.25 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in....
-10%
40670.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40670)

$187.99
$167.99
BDLS_40670
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Dual; 3 in. Center Inlet; 2.25 in. Dual Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-17%
40946.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40946)

$233.99
$192.99
BDLS_40946
Borla Exhaust Mufflers
Borla XR-1 Stainless Sportsman Racing Mufflers. (40946)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
401158.jpg Proposition 65 Warning.JPG Quick View

Borla Specialty Muffler - Notched Neck (401158)

$281.99
$251.99
BDLS_401158
Borla Exhaust Mufflers
Borla Specialty Muffler Heavy Duty (Truck) - 2.75" Center-Center 24"x 7.75" Round (Notched). Universal part. Reversible design for installation flexibility. Notched necks for clamp-on...
-10%
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Borla Universal Muffler(401382)

$271.99
$242.99
BDLS_401382
Borla Exhaust Mufflers
The compact diameter of these mufflers make them great for both classic and late model cars with ground clearance issues. Sound is attenuated with...
-10%
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Borla ProXS Muffler - Un-Notched Neck (40353)

$125.99
$112.99
BDLS_40353
Borla Exhaust Mufflers
Borla ProXS Muffler; Offset/Offset; 3 in. Offset Inlet; 3 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in....
-10%
40659.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40659)

$124.99
$111.99
BDLS_40659
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 2.5 in. Center Inlet; 2.25 in. Offset Outlet; 14 in. x 4.25 in. x 7.88 in. Oval Body; 19 in....
-10%
40942.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40942)

$183.99
$164.99
BDLS_40942
Borla Exhaust Mufflers
Borla XR-1 Stainless Sportsman Racing Mufflers. (40942)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
40359.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40359)

$125.99
$112.99
BDLS_40359
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 3 in. Center Inlet; 3 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in....
-10%
40665.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40665)

$158.99
$141.99
BDLS_40665
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 2.5 in. Center Inlet; 2.5 in. Offset Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-17%
40842S.jpg Proposition 65 Warning.JPG Quick View

Borla Specialty Muffler - Un-Notched Neck (40842S)

$231.99
$191.99
BDLS_40842S
Borla Exhaust Mufflers
Borla 2015-2017 Ford Mustang 3.7L V6 Automatic and Manual Transmission. Rear Wheel Drive 2-Door. for Touring Muffler. (40842S)Borla® Specialty mufflers are designed for custom...
-10%
400937.jpg Proposition 65 Warning.JPG Quick View

Borla Resonator - CrateMuffler / Universal (400937)

$163.99
$146.99
BDLS_400937
Borla Exhaust Mufflers
Borla CrateMuffler Resonator Option 2.25". Universal Part. Reversible Design For Installation Flexibility. (400937)BORLA® Universal Resonators are ideal for taking a loud system down a...
-17%
400941.jpg 400941_2.jpg Quick View

Borla Crate Muffler - ATAK (400941)

$503.99
$415.99
BDLS_400941
Borla Exhaust Mufflers
Borla CrateMuffler Big Block Chrysler/ Dodge/ Plymouth (Mopar) Moderate Output 383/ 413/ 426/ 440 CID ATAK (400941)BORLA's CrateMuffler is the world's first muffler purpose-built...
-10%
40344.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40344)

$125.99
$112.99
BDLS_40344
Borla Exhaust Mufflers
Borla ProXS Muffler 2" Offset/Center 14"x4"x9.5" Universal part. Reversible design for installation flexibility. (40344)Borla® ProXS™ mufflers are designed for the professional installer and custom...
-10%
401343.jpg Proposition 65 Warning.JPG Quick View

Borla Universal Resonator Muffler Notched (401343)

$150.99
$134.99
BDLS_401343
Borla Exhaust Mufflers
Borla Universal Resonator Muffler 3.00" In/Out Rd 5"X10" Notched. (401343)BORLA Universal Resonators are ideal for taking a loud system down a notch. They can...
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Borla XR1 Multicore Muffler (40536)

$525.99
$469.99
BDLS_40536
Borla Exhaust Mufflers
Borla XR-1 Stainless Hooters Series Slim Line Muffler. (40536)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design...
-10%
40348.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40348)

$184.99
$165.99
BDLS_40348
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Dual; 2.5 in. Center Inlet; 2.5 in. Dual Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-10%
40364.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40364)

$128.99
$115.99
BDLS_40364
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Center; 2.5 in. Center Inlet; 2.5 in. Center Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in....
-10%
400938.jpg Proposition 65 Warning.JPG Quick View

Borla Resonator - CrateMuffler / Universal (400938)

$166.99
$149.99
BDLS_400938
Borla Exhaust Mufflers
Borla CrateMuffler Resonator Option 2.5". Universal Part. Reversible Design For Installation Flexiblity. (400938)BORLA® Universal Resonators are ideal for taking a loud system down a...
Items 361 to 396 of 458 total

Although pipe diameter and mandrel bending have a significant effect on exhaust flow, by far the most important factor in improving exhaust flow, and sound, is the muffler. When factory mufflers are designed, making the vehicle quiet has priority over performance, because the quality of the sound from the speakers is much more important to the average driver than what comes out of the tailpipe. Our performance mufflers are designed for enthusiasts, not average drivers, because we know you not only want better exhaust flow for more horsepower, you want your car or truck to sound awesome.

When an engine operates, both exhaust gas and the sound waves created by engine combustion travel through the exhaust system. Factory mufflers are constructed to effectively quiet the sound, but in the process substantially restrict exhaust flow, which creates excessive backpressure that can significantly reduce an engine's power output. Replacing the restrictive OE muffler with a performance muffler will increase flow and allow your engine to produce the power it's capable of, and at the same time provide an exhaust note that will let everyone know your ride isn't just another stock machine.

But creating a performance muffler takes a lot of hard work, because while everyone wants increased exhaust flow and more power, we don't all want the same exhaust tone. Modern performance muffler fabrication starts with sophisticated computer aided design and proprietary software. Our manufacturers perform extensive R&D work with airflow and acoustical test equipment, as well as dyno and real world on-vehicle testing. Several muffler designs are used to achieve performance and sound goals. Chambered mufflers have internal chambers that reflect and cancel out sound waves without reducing exhaust flow; turbo mufflers have several perforated tubes to reduce sound while reducing backpressure; and straight through mufflers have a perforated tube surrounded by sound absorbing packing.

Regardless of design, it's the end result that counts. No matter what you drive or do with your vehicle, we have mufflers to suit your needs, from the top performance exhaust companies. Whether you're racing or towing a boat, have a screaming turbo 4-cylinder or big V8, we have the mufflers to give you the power and sound you want. If you tow a trailer with your truck you may want more pulling power but with just a moderate rumble and minimal resonance inside the cabin. Or you may have a big inch street machine and want the least restriction and most aggressive sound available. Many race tracks and racing organizations have decibel restrictions which require mufflers that reduce noise but with minimum restriction. We offer mufflers for each of these applications and more.

Besides getting the right power and sound, the performance mufflers on our digital shelves are also available in a variety of shapes, dimensions, and configurations, with a wide range of inlet and outlet diameters, so you can get the muffler that perfectly fits your exhaust system and space requirements. Most are universal fitment and ideal for custom exhaust building, but we also have vehicle specific mufflers. Our selection includes round, oval, compact, low profile, and slimline designs; as well as collector mufflers, mufflers with integral exhaust tips, and much more. Our mufflers will deliver the power and sound you want today and well into the future, because each is constructed from long lasting, durable materials like stainless steel or aluminized steel.

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