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aFe Power Direct Fit 409 Stainless Steel Catalytic Converter for 09-18 RAM 1500 V8-5.7L HEMI (47-42001) aFe Power Direct Fit 409 Stainless Steel Catalytic Converter for 09-18 RAM 1500 V8-5.7L HEMI (47-42001) Quick View

aFe Power Direct Fit 409 Stainless Steel Catalytic Converter for 09-18 RAM 1500 V8-5.7L HEMI (47-42001)

$1,146.00
$1,088.70
BKJC_47-42001
aFe Power Catalytic Converters / Test Pipes Exhaust
This system is constructed of 2-1/2" - 3" mandrel-bent 409 stainless steel tubing for maximum strength and durability. This kit comes with a EPA...
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aFe POWER Twisted Steel Downpipe 2-1/2 IN 304 Stainless Steel w/ Cat (48-37001-1HC) aFe POWER Twisted Steel Downpipe 2-1/2 IN 304 Stainless Steel w/ Cat (48-37001-1HC) Quick View

aFe POWER Twisted Steel Downpipe 2-1/2 IN 304 Stainless Steel w/ Cat (48-37001-1HC)

$1,146.00
$1,088.70
BKJC_48-37001-1HC
aFe Power Downpipes Exhaust
This system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Includes a high flow catalytic converter which...
-5%
aFe Twisted Steel Downpipe 3 IN 304 Stainless Steel w/ Cat (48-36411-1YC) aFe Twisted Steel Downpipe 3 IN 304 Stainless Steel w/ Cat (48-36411-1YC) Quick View

aFe Twisted Steel Downpipe 3 IN 304 Stainless Steel w/ Cat (48-36411-1YC)

$1,912.00
$1,816.40
BKJC_48-36411-1YC
aFe Power Downpipes Exhaust
This system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Includes high flow catalytic converters which are...
-5%
aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2009-2016 Audi A4(48-36410-YC) aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2009-2016 Audi A4(48-36410-YC) Quick View

aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2009-2016 Audi A4(48-36410-YC)

$1,075.00
$1,021.25
BKJC_48-36410-YC
aFe Power Downpipes Exhaust
3" 304 Stainless Steel Construction:This system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. High Flow Catalytic Converter:Includes...
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aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2013-2017 Cadillac ATS(48-34126-HC) aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2013-2017 Cadillac ATS(48-34126-HC) Quick View

aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2013-2017 Cadillac ATS(48-34126-HC)

$1,261.00
$1,197.95
BKJC_48-34126-HC
aFe Power Downpipes Exhaust
aFe POWER introduces an all new Twisted Steel "Street" down-pipe for the Cadillac ATS with L4-2.0L (t) engine. This street version down-pipe is designed...
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aFe Power Twisted Steel Down Pipe 3 to 2-3/4 IN 304 Stainless Steel w/ Cat for 2016-2017 BMW X1(48-36322-HC) aFe Power Twisted Steel Down Pipe 3 to 2-3/4 IN 304 Stainless Steel w/ Cat for 2016-2017 BMW X1(48-36322-HC) Quick View

aFe Power Twisted Steel Down Pipe 3 to 2-3/4 IN 304 Stainless Steel w/ Cat for 2016-2017 BMW X1(48-36322-HC)

$1,261.00
$1,197.95
BKJC_48-36322-HC
aFe Power Downpipes Exhaust
Includes 3rd O2 bung:This down pipe includes a 3rd O2 bung and plug for either a wide-band O2 gauge or auxiliary instrumentation.304 Stainless Steel:3"...
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aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2016-2017 Ford Focus(48-33024-HC) aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2016-2017 Ford Focus(48-33024-HC) Quick View

aFe Power Twisted Steel Down Pipe 3 IN 304 Stainless Steel w/ Cat for 2016-2017 Ford Focus(48-33024-HC)

$1,388.00
$1,318.60
BKJC_48-33024-HC
aFe Power Downpipes Exhaust
Add dyno-proven power to your Ford Focus RS with this Twisted Steel down-pipe which produced up to +10 horsepower and +14 lbs. x ft....
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aFe Power Twisted Steel Down Pipe for 2011-2016 Mini Cooper Countryman(48-36318-1HC) aFe Power Twisted Steel Down Pipe for 2011-2016 Mini Cooper Countryman(48-36318-1HC) Quick View

aFe Power Twisted Steel Down Pipe for 2011-2016 Mini Cooper Countryman(48-36318-1HC)

$1,146.00
$1,088.70
BKJC_48-36318-1HC
aFe Power Downpipes Exhaust
Twisted Steel Down Pipe 2-1/2 IN 304 Stainless Steel w/ Cat.This system is constructed of 2-1/2 IN mandrel-bent brushed finished 304 stainless steel tubing...
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aFe MACH Force-Xp Stainless Steel Fender Support Bracket Assembly (49-82010) aFe MACH Force-Xp Stainless Steel Fender Support Bracket Assembly (49-82010) Quick View

aFe MACH Force-Xp Stainless Steel Fender Support Bracket Assembly (49-82010)

$124.00
$117.80
BKJC_49-82010
aFe Power Clamps, Hangers and Misc Exhaust Components Exhaust
Mach Force XP Stainless Steel Fender Support Bracket Assembly (49-82010) by aFe. Get increased exhaust flow, more horsepower and torque, improved performance and lower...
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aFe MACH Force Xp Tailpipe Hanger Kit (49-02001BR) aFe MACH Force Xp Tailpipe Hanger Kit (49-02001BR) Quick View

aFe MACH Force Xp Tailpipe Hanger Kit (49-02001BR)

$76.00
$72.20
BKJC_49-02001BR
aFe Power Clamps, Hangers and Misc Exhaust Components Exhaust
The MACH Force XP tailpipe hanger kit is engineered to provide OE-style fitment and to stand up to the most extreme conditions. This bracket...
-5%
aFe Scorpion 304 Stainless Steel Y-Pipe Spacer Kit (48-90002) Quick View

aFe Scorpion 304 Stainless Steel Y-Pipe Spacer Kit (48-90002)

$93.00
$88.35
BKJC_48-90002
aFe Power Clamps, Hangers and Misc Exhaust Components Exhaust
Scorpion 304 SS Y-Pipe Spacer Kit (48-90002) by aFe. Adding 2.5" or more lift to your vehicle will change driveline and can create clearance...
-5%
aFe Scorpion Mild-Steel Y-Pipe Spacer Kit (48-90003) Quick View

aFe Scorpion Mild-Steel Y-Pipe Spacer Kit (48-90003)

$60.00
$57.00
BKJC_48-90003
aFe Power Clamps, Hangers and Misc Exhaust Components Exhaust
Scorpion Mild-Steel Y-Pipe Spacer Kit (48-90003) by aFe. Adding 2.5" or more lift to your vehicle will change driveline and can create clearance problems...
-5%
aFe BladeRunner OE Replacement EBPV Adapter (46-60077) aFe BladeRunner OE Replacement EBPV Adapter (46-60077) Quick View

aFe BladeRunner OE Replacement EBPV Adapter (46-60077)

$145.00
$137.75
BKJC_46-60077
aFe Power Clamps, Hangers and Misc Exhaust Components Exhaust
This adapter mounts to either the OE or aFe BladeRunner turbo without any modification. Notes:This product is NOT legal for installation on vehicles required...
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aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-C) aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-C) Quick View

aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-C)

$384.00
$364.80
BKJC_49C32068-C
aFe Power Exhaust Exhaust Tips
This stylish exhaust tip will be the finishing touch for any exhaust system. Made of the finest stainless steel, it's available in a highly...
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aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-P) aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-P) Quick View

aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-P)

$254.00
$241.30
BKJC_49C32068-P
aFe Power Exhaust Exhaust Tips
This stylish exhaust tip will be the finishing touch for any exhaust system. Made of the finest stainless steel, it's available in a highly...
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aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-B) aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-B) Quick View

aFe MACH Force-Xp 4-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C32068-B)

$310.00
$294.50
BKJC_49C32068-B
aFe Power Exhaust Exhaust Tips
This stylish exhaust tip will be the finishing touch for any exhaust system. Made of the finest stainless steel, it's available in a highly...
-5%
aFe MACH Force-Xp 3-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C36413-C) aFe MACH Force-Xp 3-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C36413-C) Quick View

aFe MACH Force-Xp 3-1/2 IN Carbon Fiber OE Replacement Exhaust Tips (49C36413-C)

$808.00
$767.60
BKJC_49C36413-C
aFe Power Exhaust Exhaust Tips
Mach Force XP 304 SS Round Straight Cut Dual Carbon Fiber Exhaust Tip (49C36413-C) by aFe. Tip Shape: Round. Tip Cut Type: Straight Cut....
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aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tip Polished (49-36410) aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tip Polished (49-36410) Quick View

aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tip Polished (49-36410)

$535.00
$508.25
BKJC_49-36410
aFe Power Exhaust Exhaust Tips
Mach Force XP 304 SS Round Straight Cut Dual Polished Exhaust Tip by aFe. Tip Shape: Round. Tip Cut Type: Straight Cut. Tip Outlet...
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aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tip Polished (49C36413-P) aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tip Polished (49C36413-P) Quick View

aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tip Polished (49C36413-P)

$573.00
$544.35
BKJC_49C36413-P
aFe Power Exhaust Exhaust Tips
Mach Force XP 304 SS Round Straight Cut Dual Polished Exhaust Tip (49C36413-P) by aFe. Tip Shape: Round. Tip Cut Type: Straight Cut. Tip...
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aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tips Polished (49C36416-P) aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tips Polished (49C36416-P) Quick View

aFe MACH Force-Xp 304 Stainless Steel OE Replacement Exhaust Tips Polished (49C36416-P)

$865.00
$821.75
BKJC_49C36416-P
aFe Power Exhaust Exhaust Tips
Mach Force XP 304 SS Round Angle Cut Quad Brushed Exhaust Tips (49C36416-P) by aFe. Tip Shape: Round. Tip Cut Type: Angle Cut. Tip...
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aFe MACH Force-Xp 409 Stainless Steel OE Replacement Exhaust Tip Black (49C42046-B) aFe MACH Force-Xp 409 Stainless Steel OE Replacement Exhaust Tip Black (49C42046-B) Quick View

aFe MACH Force-Xp 409 Stainless Steel OE Replacement Exhaust Tip Black (49C42046-B)

$323.00
$306.85
BKJC_49C42046-B
aFe Power Exhaust Exhaust Tips
Mach Force XP 409 SS Round Angle Cut Black Exhaust Tips (49C42046-B) by aFe. Tip Shape: Round. Tip Cut Type: Angle Cut. Tip Inlet...
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aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polish Tip (49-44123-P) Quick View

aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polish Tip (49-44123-P)

$680.00
$646.00
BKJC_49-44123-P
aFe Power Exhaust Exhaust Systems
aFe POWER introduces the all new Apollo GT Series single side exit axle-back exhaust system. This Apollo GT Series muffler delete is designed with...
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aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polish Tip (49-44122-P) Quick View

aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polish Tip (49-44122-P)

$635.00
$603.25
BKJC_49-44122-P
aFe Power Exhaust Exhaust Systems
aFe POWER introduces the all new Apollo GT Series single side exit axle-back exhaust system. This Apollo GT Series muffler delete is designed with...
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aFe MACH Force-Xp 3 IN to 2-1/2 IN Stainless Steel Axle-Back Exhaust System Polished (49-36417-P) Quick View

aFe MACH Force-Xp 3 IN to 2-1/2 IN Stainless Steel Axle-Back Exhaust System Polished (49-36417-P)

$729.00
$692.55
BKJC_49-36417-P
aFe Power Exhaust Exhaust Systems
Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Axle-Back Exhaust System....
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aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-42075-P) Quick View

aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-42075-P)

$535.00
$508.25
BKJC_49-42075-P
aFe Power Exhaust Exhaust Systems
Large Bore HD 409 SS DPF-Back Exhaust System with Single Side Exit (49-42075-P) by aFe. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS....
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aFe ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System w/Polished Tip (49-02075-P) Quick View

aFe ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System w/Polished Tip (49-02075-P)

$420.00
$399.00
BKJC_49-02075-P
aFe Power Exhaust Exhaust Systems
Atlas Aluminized Steel DPF-Back Exhaust System with Single Side Exit by aFe. Exhaust System Type: DPF-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter:...
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aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Black Tip (49-44123-B) Quick View

aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Black Tip (49-44123-B)

$754.00
$716.30
BKJC_49-44123-B
aFe Power Exhaust Exhaust Systems
aFe POWER introduces the all new Apollo GT Series single side exit axle-back exhaust system. This Apollo GT Series muffler delete is designed with...
-5%
aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Black Tip (49-44122-B) Quick View

aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Black Tip (49-44122-B)

$704.00
$668.80
BKJC_49-44122-B
aFe Power Exhaust Exhaust Systems
aFe POWER introduces the all new Apollo GT Series single side exit axle-back exhaust system. This Apollo GT Series muffler delete is designed with...
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aFe MACH Force-Xp 409 Stainless Steel Axle-Back Exhaust System w/ Polished Tip (49-42079) Quick View

aFe MACH Force-Xp 409 Stainless Steel Axle-Back Exhaust System w/ Polished Tip (49-42079)

$384.00
$364.80
BKJC_49-42079
aFe Power Exhaust Exhaust Systems
Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Axle-Back Exhaust System....
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aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip (49-42078-B) Quick View

aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip (49-42078-B)

$593.00
$563.35
BKJC_49-42078-B
aFe Power Exhaust Exhaust Systems
Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD Turbo Back Exhaust...
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aFe ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System w/Black Tip (49-02078-B) Quick View

aFe ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System w/Black Tip (49-02078-B)

$461.00
$437.95
BKJC_49-02078-B
aFe Power Exhaust Exhaust Systems
The ATLAS Exhaust System channels the exhaust from the engine to the rear of the vehicle on a racing diesel engine truck. It has...
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aFe MACH Force-Xp 3 IN to 2-1/2 IN Stainless Steel Axle-Back Exhaust System Carbon (49-36417-C) Quick View

aFe MACH Force-Xp 3 IN to 2-1/2 IN Stainless Steel Axle-Back Exhaust System Carbon (49-36417-C)

$808.00
$767.60
BKJC_49-36417-C
aFe Power Exhaust Exhaust Systems
Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Axle-Back Exhaust System....
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aFe MACH Force XP 3 Quick View

aFe MACH Force XP 3" Cat-Back 304 Stainless Steel Exhaust System w/Black Tip (49-36114-P)

$1,578.00
$1,499.10
BKJC_49-36114-P
aFe Power Exhaust Exhaust Systems
Mach Force XP 304 SS Cat-Back Exhaust System with Single Side Exit by aFe. Max gains +13 HP / +15 lbs. x ft. of...
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aFe MACH Force-Xp 3-1/2 IN 409 Stainless Steel Cat-Back Exhaust System (49-33112-P) Quick View

aFe MACH Force-Xp 3-1/2 IN 409 Stainless Steel Cat-Back Exhaust System (49-33112-P)

$657.00
$624.15
BKJC_49-33112-P
aFe Power Exhaust Exhaust Systems
Vulcan Series 304 SS Cat-Back Exhaust System with Single Side Exit by aFe. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing...
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aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-42078-P) Quick View

aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-42078-P)

$573.00
$544.35
BKJC_49-42078-P
aFe Power Exhaust Exhaust Systems
Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD Turbo Back Exhaust...
-5%
aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-42065-P) Quick View

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-42065-P)

$420.00
$399.00
BKJC_49-42065-P
aFe Power Exhaust Exhaust Systems
Large Bore HD 409 SS DPF-Back Exhaust System with Single Side Exit (49-42065-P) by aFe. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS....
Items 4285 to 4320 of 10100 total

Elevate your driving experience to new heights with a performance exhaust system that transcends mere accessories. Prepare for an exhilarating journey as your senses come alive. Engage the throttle and feel the surge of power thrusting you back into your seat. Feast your eyes upon the gleaming stainless steel tip, seamlessly enhancing the allure of your vehicle's design. Embrace the raw, visceral sensation coursing through your veins as the exhaust note resonates, evolving from a captivating rumble to an awe-inspiring roar with each acceleration. Discover the perfect harmony between performance and aesthetics, fueling your passion for the road ahead. Experience automotive nirvana with a performance exhaust system that sets new standards of excellence. 

Unleash the untapped power within your vehicle with our exceptional range of exhaust systems, featuring cutting-edge innovations like the H-pipe or X-pipe configurations. Experience the remarkable performance gains that these pipes deliver. By seamlessly connecting the dual exhaust system, these pipes enable a symphony of power to surge through your engine. When cylinders fire in close proximity on one bank, the other bank awaits its turn, leading to underutilized potential. However, with the addition of our H-pipe or X-pipe, the exhaust system expands harmoniously, facilitating the exit of exhaust pulses from both sides. This intelligent design amplifies exhaust flow, resulting in a remarkable boost in horsepower. Maximize the capabilities of your vehicle and redefine your driving experience with our revolutionary exhaust systems.

At JM Auto Racing, each exhaust system in our collection undergoes meticulous design and testing processes to optimize performance. By utilizing advanced flow benches and dynos, we precisely identify and eliminate any factors that impede exhaust flow, resulting in an impressive power boost. While our muffler designs may vary, one aspect remains constant: our exhaust pipes are exclusively mandrel bent. This innovative bending technique guarantees flawlessly smooth bends while preserving the consistent tube size and shape throughout the entire length. In contrast, tubes that lack the advantages of mandrel bending may experience a reduction in diameter at sharp bends, leading to undesirable restrictions. Trust in our commitment to excellence and select an exhaust system that guarantees unparalleled performance and unhindered power delivery.

In the realm of exhaust system selection, sound is an equally crucial factor alongside enhanced power. This is precisely why our exhaust systems undergo rigorous testing to ensure they deliver the perfect exhaust note, granting you a gratifying driving experience. While performance and sound remain paramount, we understand the significance of longevity in an exhaust system. Thus, our offerings are meticulously crafted from top-quality materials to ensure exceptional durability. Opt for our stainless steel or aluminized steel systems, both renowned for their long-lasting resilience. Moreover, our exhaust systems are adorned with stylish exhaust tips, typically composed of stainless steel and meticulously polished to create a captivating visual impact. However, if you seek a distinct aesthetic, feel free to explore our diverse range of exhaust tips. Choose our exhaust systems to elevate your driving pleasure while relishing their enduring performance and captivating appearance.

At our disposal, we primarily offer "cat back" exhaust systems, encompassing comprehensive replacements for the exhaust system located behind the catalytic converter. This ensures that your emissions system remains unaffected and your vehicle successfully passes smog checks without any hindrance. In the event of catalytic converter replacement, we present a performance-oriented alternative that not only effectively reduces emissions but also enhances exhaust flow when compared to your factory-installed converter. These remarkable converters boast a monolithic honeycomb catalyst meticulously designed to facilitate maximum flow, accompanied by seamlessly flowing inlet and outlet joints for optimal performance.

For those seeking to further diminish exhaust restriction and amplify power gains, we recommend the installation of headers. By replacing the factory exhaust manifolds, which often impede flow, headers introduce individual tubes for each exhaust port, granting unrestricted passage for each exhaust pulse directly from the cylinder head. These individual tubes converge into a larger tube known as a collector. Notably, headers feature larger diameter tubes compared to the runners on exhaust manifolds, and these tubes undergo mandrel bending, ensuring gradual radius bends that effectively reduce restriction and augment exhaust flow, leading to remarkable performance enhancements.

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