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Motorcycle Off-Road - 4 Stroke

518 products
Regular price $449.00
Sale price $449.00
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Yoshimura has been working extensively with OE’s and factory racing teams to develop racing-oriented parts that can also benefit the weekend warrior. Because we take racing seriously, we have utili...
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Regular price $799.00
Sale price $799.00
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Parallelogram-shape muffler Maximized internal volume Straight, single core baffle Low-volume sound insert capable   Honda 2016 - CRF250R 2015 - CRF250R 2014 - CRF250R
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Regular price $299.99
Sale price $299.99
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The latest version of the Powercore 4 design incorporates a hi-flow core which has more surface area to absorb more sound while flowing more exhaust Constructed with an extruded aluminum canister,...
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Regular price $209.99
Sale price $209.99
Regular price $209.99
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The FMF Power Bomb is a four stroke header pipe unit that has a unique bulge precisely located in the header system. A "pre muffler" of sorts, the Power Bomb actually lowers sound output because it...
Regular price $569.00
Sale price $569.00
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2019 marks a new quest for the Kawasaki brand to own the 450cc motocross class. By the looks of it, the new big bore green machine looks like a strong contender, especially when paired with Yoshimu...
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Regular price $569.00
Sale price $569.00
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Enduro series mufflers have more volume than stock to provide a decrease in overall dB noise level Includes installed spark arrestor that means it's 100% ready to go on trails in all 50 states
Regular price $919.00
Sale price $919.00
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Parallelogram-shape muffler Maximized internal volume Straight, single core baffle Low-volume sound insert capable
Regular price $609.00
Sale price $609.00
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Pentagonal-shaped muffler Maximized internal volume Polyresonant duplex front chamber Stepped, two-stage core baffle Spark Arrestor/Sound Insert Compatible
Regular price $619.00
Sale price $619.00
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Pentagonal-shaped muffler Maximized internal volume Polyresonant duplex front chamber Stepped, two-stage core baffle Spark Arrestor/Sound Insert Compatible
Regular price $579.00
Sale price $579.00
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Pentagonal-shaped muffler Maximized internal volume Polyresonant duplex front chamber Stepped, two-stage core baffle Spark Arrestor/Sound Insert Compatible
Regular price $789.00
Sale price $789.00
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Pentagonal-shaped muffler Maximized internal volume Polyresonant duplex front chamber Stepped, two-stage core baffle Spark Arrestor/Sound Insert Compatible
Regular price $569.00
Sale price $569.00
Regular price
Unit price
per 
Enduro series mufflers have more volume than stock to provide a decrease in overall dB noise level Includes installed spark arrestor that means it's 100% ready to go on trails in all 50 states
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Regular price $619.00
Sale price $619.00
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Building performance exhaust systems for the factory race efforts improves our research and development, which improves the overall performance of our products. Adapting technology we learn on the ...
Regular price $859.00
Sale price $859.00
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per 
Yoshimura has been working extensively with OE’s and factory racing teams to develop racing-oriented parts that can also benefit the weekend warrior. Because we take racing seriously, we have utili...
Sold Out
Regular price $549.00
Sale price $549.00
Regular price
Unit price
per 
Parallelogram-shape muffler Maximized internal volume Straight, single core baffle Low-volume sound insert capable
Regular price $1,019.00
Sale price $1,019.00
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Yamaha' s YZ450F is one the bikes that seems to win the accolades of media testers of almost every level. We set out to make an even better experience with big blue. It's no secret that the YZ450F ...
Regular price $879.00
Sale price $879.00
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We considered all the details when it came to the RS-12. One look and you can see it's like nothing else on the market. As you get closer you will notice the details in every place on our new dirt ...
Regular price $759.00
Sale price $759.00
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*Product may vary by application Leaning on many of its bigger sibling's handling and styling cues, the new Honda CRF250R boasts many new features. It's lighter, more agile and is sure to be ...
Regular price $779.00
Sale price $779.00
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After over three years in development and testing we are pleased to announce the RS-12 is here! With the help of incredibly talented factory sponsored athletes, technicians, devoted engineers and ...
Regular price $779.00
Sale price $779.00
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After over three years in development and testing we are pleased to announce the RS-12 is here! With the help of incredibly talented factory sponsored athletes, technicians, devoted engineers and ...
Regular price $1,029.00
Sale price $1,029.00
Regular price
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per 
We considered all the details when it came to the RS-12. One look and you can see it's like nothing else on the market. As you get closer you will notice the details in every place on our new dirt ...
Regular price $1,029.00
Sale price $1,029.00
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per 
The most anticipated 450cc motocross bike for 2021 is here! With an all-new designed chassis and engine, the new Honda CRF450 is sure to set new records. Our new RS-12 system for the new Honda CRF...
Regular price $519.00
Sale price $519.00
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Pentagonal-shaped muffler Maximized internal volume Polyresonant duplex front chamber Stepped, two-stage core baffle Spark Arrestor/Sound Insert Compatible
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Regular price $1,049.00
Sale price $1,049.00
Regular price
Unit price
per 
We considered all the details when it came to the RS-12. One look and you can see it's like nothing else on the market. As you get closer you will notice the details in every place on our new dirt ...