-17%
400825.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400825)

$456.99
$376.99
BDLS_400825
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block Stock Output 283/327/350 CID S-Type. (400825)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400483.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Notched Neck (400483)

$147.99
$132.99
BDLS_400483
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%
40004S.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40004S)

$215.99
$178.99
BDLS_40004S
Borla Exhaust Mufflers
Borla XR-1 Sportsman 3.5" Center-Center 8"x5" Round - Racing Muffler. Universal part. Reversible Design For Installation Flexibility. (40004S)BORLA's XR-1® raceline products are the choice...
-10%
400287.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (400287)

$267.99
$239.99
BDLS_400287
Borla Exhaust Mufflers
Borla ProXS Muffler; Dual/Dual; 2.25 in. Dual Inlet; 2.25 in. Dual Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-10%
400371.jpg Proposition 65 Warning.JPG Quick View

Borla XR1 Multicore Muffler (400371)

$334.99
$298.99
BDLS_400371
Borla Exhaust Mufflers
Borla XR-1 Multi-Core 3" Center-Center 16" x 4.25" x 7.88" - Rotary Engine Equipped Racing Muffler (400371)BORLA's XR-1® raceline products are the choice of...
-10%
400487.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Notched Neck (400487)

$190.99
$170.99
BDLS_400487
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Dual; 3 in. Center Inlet; 2.5 in. Dual Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-10%
400492.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Notched Neck (400492)

$274.99
$245.99
BDLS_400492
Borla Exhaust Mufflers
Borla ProXS Muffler; Dual/Dual; 2.25 in. Dual Inlet; 2.25 in. Dual Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-10%
400497.jpg Proposition 65 Warning.JPG Quick View

Borla Specialty Muffler - Notched Neck (400497)

$220.99
$197.99
BDLS_400497
Borla Exhaust Mufflers
Borla Specialty Muffler S-Type - 2.5" Center-Center 10" x 5" Round. Universal part. Reversible design for installation flexibilty. Notched necks for clamp-on installtion. (400497)Borla®...
-10%
400832.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400832)

$277.99
$248.99
BDLS_400832
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Small Block High Output 289/302/351W CID & Big Block Moderate Output 390/427/428/460 CID FE Series ATAK. (400832)BORLA's CrateMuffler is the...
-10%
400829.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400829)

$277.99
$248.99
BDLS_400829
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Small Block High Output 289/302/351W CID & Big Block Moderate Output 390/427/428/460 CID FE Series ATAK. (400829)BORLA's CrateMuffler is the...
-10%
400853.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400853)

$347.99
$310.99
BDLS_400853
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Big Block Stock Output 396/402/427 CID S-Type. (400853)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400828.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400828)

$372.99
$332.99
BDLS_400828
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Small Block High Output 289/302/351W CID & Big Block Moderate Output 390/427/428/460 CID FE Series S-Type. (400828)BORLA's CrateMuffler is the...
-10%
400843.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400843)

$310.99
$277.99
BDLS_400843
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block High Output 350/383/406 CID S-Type. (400843)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400840.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400840)

$310.99
$277.99
BDLS_400840
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block High Output 350/383/406 CID S-Type. (400840)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400855.jpg 400855_1.jpg Quick View

Borla Crate Muffler - S-Type (400855)

$499.99
$448.99
BDLS_400855
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Coyote Moderate Output 5.0L S-Type. (400855)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of...
-17%
400826.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400826)

$416.99
$343.99
BDLS_400826
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block Stock Output 283/327/350 CID ATAK. (400826)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-12%
400844.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400844)

$340.99
$299.99
BDLS_400844
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block High Output 350/383/406 CID ATAK. (400844)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400835.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400835)

$298.99
$266.99
BDLS_400835
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Small Block Stock Output 289/302/351W CID ATAK. (400835)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400858.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400858)

$463.99
$414.99
BDLS_400858
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Coyote Moderate Output 5.0L ATAK. (400858)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of...
-10%
40349.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40349)

$184.99
$165.99
BDLS_40349
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Dual; 3 in. Center Inlet; 2.5 in. Dual Outlet; 19 in. x 4 in. x 9.5 in. Oval Body; 24 in....
-10%
40352.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40352)

$128.99
$115.99
BDLS_40352
Borla Exhaust Mufflers
Borla ProXS Muffler; Offset/Offset; 2.5 in. Offset Inlet; 2.5 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in....
-17%
40947.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40947)

$233.99
$192.99
BDLS_40947
Borla Exhaust Mufflers
Borla XR-1 Stainless Sportsman Racing Mufflers. (40947)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
400831.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400831)

$372.99
$332.99
BDLS_400831
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Small Block High Output 289/302/351W CID & Big Block Moderate Output 390/427/428/460 CID FE Series S-Type. (400831)BORLA's CrateMuffler is the...
-10%
400846.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400846)

$310.99
$277.99
BDLS_400846
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block Stock Output 283/327/350 CID S-Type. (400846)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-16%
40085.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman Muffler (40085)

$176.99
$146.99
BDLS_40085
Borla Exhaust Mufflers
Borla XR-1 Sportsman 3" Center-Center 15"x5" Round - Racing Muffler. Universal part. Reversible design for installation flexibility. (40085)BORLA's XR-1® raceline products are the choice...
-10%
400850.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400850)

$287.99
$257.99
BDLS_400850
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block Stock Output 283/327/350 CID ATAK. (400850)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400943.jpg 400943_2.jpg Quick View

Borla Crate Muffler - ATAK (400943)

$383.99
$342.99
BDLS_400943
Borla Exhaust Mufflers
Borla CrateMuffler Big Block Chrysler/ Dodge/ Plymouth (Mopar) Moderate Output 383/ 413/ 426/ 440 CID ATAK (400943)BORLA's CrateMuffler is the world's first muffler purpose-built...
-10%
400945.jpg 400945_vehicle.jpg Quick View

Borla Crate Muffler - ATAK (400945)

$310.99
$277.99
BDLS_400945
Borla Exhaust Mufflers
Borla CrateMuffler Chevrolet Stock Output LS3 6.2L ATAK (400945)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate...
-10%
401342.jpg Proposition 65 Warning.JPG Quick View

Borla Universal Resonator Muffler Notched (401342)

$149.99
$133.99
BDLS_401342
Borla Exhaust Mufflers
Borla Universal Resonator Muffler 2.75" In/Out Rd 5"X10" Notched. (401342)BORLA Universal Resonators are ideal for taking a loud system down a notch. They can...
-10%
401384.jpg Proposition 65 Warning.JPG Quick View

Borla Universal Muffler(401384)

$246.99
$220.99
BDLS_401384
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%
401392.jpg Proposition 65 Warning.JPG Quick View

Borla XR-1 Sportsman 2.5" Muffler,Center Inlet/2.5" Center Outlet 5" Round x 15" Long Body(401392)

$165.99
$148.99
BDLS_401392
Borla Exhaust Mufflers
Compact size is perfect for applications with limited space. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded...
-10%
40657.jpg Proposition 65 Warning.JPG Quick View

Borla ProXS Muffler - Un-Notched Neck (40657)

$127.99
$114.99
BDLS_40657
Borla Exhaust Mufflers
Borla ProXS Muffler; Center/Offset; 2 in. Center Inlet; 2 in. Offset Outlet; 14 in. x 4.25 in. x 7.88 in. Oval Body; 19 in....
-10%
40741.jpg Proposition 65 Warning.JPG Quick View

Borla XR1 Multicore Muffler (40741)

$390.99
$348.99
BDLS_40741
Borla Exhaust Mufflers
Borla XR-1 Stainless Multicore Racing Mufflers. (40741)BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core...
-10%
400841.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - ATAK (400841)

$341.99
$305.99
BDLS_400841
Borla Exhaust Mufflers
Borla CrateMuffler for Chevrolet Small Block High Output 350/383/406 CID ATAK. (400841)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound &...
-10%
400856.jpg 400856_1.jpg Quick View

Borla Crate Muffler - ATAK (400856)

$463.99
$414.99
BDLS_400856
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Coyote Moderate Output 5.0L ATAK. (400856)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of...
-11%
400857.jpg Proposition 65 Warning.JPG Quick View

Borla Crate Muffler - S-Type (400857)

$451.99
$399.99
BDLS_400857
Borla Exhaust Mufflers
Borla CrateMuffler for Ford Coyote Moderate Output 5.0L S-Type. (400857)BORLA's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of...
Items 325 to 360 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.

Your cart

×