Boyesen
Boyesen is a trusted performance brand known for its innovative intake systems, reed technology and engine components engineered for sharper throttle response and improved airflow. Their Rad Valve reed cages, Power Reeds and Super Stock kits unlock reliable power gains for dirt bikes, ATVs and two-stroke machines. Riders trust Boyesen for precision fitment, increased engine efficiency and race-ready durability. Upgrade with Boyesen to achieve cleaner combustion and stronger low- to mid-range performance.
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Boyesen - SSF002 - Super Stock Reed Set - Fiber - Husqvarna/Honda/Kawasaki
Boyesen
$34.95Boyesen - SSF002 - Super Stock Reed Set - Fiber - Husqvarna/Honda/KawasakiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsColor/FinishYellowRiding StyleOff-RoadBase...$34.95 -
Boyesen - SSC002 - Super Stock Reed Set - Carbon - Husqvarna/Honda/Kawasaki
Boyesen
$50.95Boyesen - SSC002 - Super Stock Reed Set - Carbon - Husqvarna/Honda/KawasakiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsBase ColorBlackUnitsSetMaterialCarbonModelSuper...$50.95 -
Boyesen - PRO-182 - Pro Series Reed Set - Honda
Boyesen
$69.95Boyesen - PRO182 - Pro Series Reed Set - HondaFeaturesHigh-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed designOffers the quickest acceleration any reed can offer;...$69.95 -
Boyesen - PRO-193 - Pro Series Reed Set - Kawasaki
Boyesen
$62.95Boyesen - PRO193 - Pro Series Reed Set - KawasakiFeaturesHigh-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed designOffers the quickest acceleration any reed can...$62.95 -
Boyesen - SSC201 - Super Stock Reed Set - Carbon - Honda
Boyesen
$50.95Boyesen - SSC201 - Super Stock Reed Set - Carbon - HondaFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsUnitsSetModelSuper StockBase ColorBlackMaterialCarbonProduct NameReed...$50.95 -
Boyesen - SSC222 - Super Stock Reed Set - Carbon - Suzuki
Boyesen
$50.95Boyesen - SSC222 - Super Stock Reed Set - Carbon - SuzukiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsBase ColorBlackUnitsSetMaterialCarbonModelSuper StockRiding...$50.95 -
Boyesen - SSC122 - Super Stock Reed Set - Carbon - Suzuki
Boyesen
$50.95Boyesen - SSC122 - Super Stock Reed Set - Carbon - SuzukiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsColor/FinishBlackProduct NameReed PetalRiding...$50.95 -
Boyesen - PSR20 - Replacement Pro Series Reed Set - RAD34A/RAD34B/RAD34X/RAD34XA - Yamaha
Boyesen
$64.95Boyesen - PRO20 - Replacement Pro Series Reed Set - RAD34A/RAD34B/RAD34X/RAD34XA - YamahaFeaturesResponds quickly and accurately to changes in piston speed for smooth, dependable throttle...$64.95 -
Boyesen - PRO-45 - Pro Series Reed Set - Kawasaki/Suzuki
Boyesen
$69.95Boyesen - PRO45 - Pro Series Reed Set - Kawasaki/SuzukiFeaturesHigh-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed designOffers the quickest acceleration any reed...$69.95 -
Boyesen - PSR-173 - Replacement Pro Series Reed Set - RAD30C - Yamaha
Boyesen
$56.95Boyesen - PRO173 - Replacement Pro Series Reed Set - RAD30C - YamahaFeaturesResponds quickly and accurately to changes in piston speed for smooth, dependable throttle responseOffers the quickest...$56.95 -
Boyesen - RL11 - Replacement Reed Set - RAD-01/11/11A/11B/21B/21C/33/33B/33C - Honda/Kawasaki/Suzuki/Yamaha
Boyesen
$45.95Boyesen - RL11 - Replacement Reed Set - RAD-01/11/11A/11B/21B/21C/33/33B/33C - Honda/Kawasaki/Suzuki/YamahaFeaturesQuickest acceleration any reed can offer, maximizing horsepower and...$45.95 -
Boyesen - RL-03 - Replacement Reed Set - RAD-13 - Kawasaki
Boyesen
$49.95Boyesen - RL03 - Replacement Reed Set - RAD-13 - KawasakiFeaturesQuickest acceleration any reed can offer, maximizing horsepower and torqueSpecsMaterialFiberglassProduct NameReed PetalBase...$49.95 -
Boyesen - WPI-37 - Impeller Pump - Yamaha YZ/WR 250 F
Boyesen
$79.95Boyesen - WPI37 - Impeller Pump - Yamaha YZ/WR 250 FFeaturesLess horsepower loss during the late stages of a raceExtend engine lifeImpellers are designed to minimize cavitationSpecsProduct...$79.95 -
Out of stock
Boyesen - WPK-07AB - Impeller/Waterpump Cover - Black - Honda
Boyesen
$194.95Boyesen - 09400974 - Impeller/Waterpump Cover - Black - HondaFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$194.95 -
Boyesen - CC-07AB - Clutch Cover - Black - Honda
Boyesen
$117.95Boyesen - 09400968 - Clutch Cover - Black - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$117.95 -
Boyesen - CC-38CB - Clutch Cover - Black - Yamaha
Boyesen
$95.95Boyesen - 09400971 - Clutch Cover - Black - YamahaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - WPK-26AB - Impeller/Waterpump Cover - Black - Suzuki
Boyesen
$229.95Boyesen - 09400861 - Impeller/Waterpump Cover - Black - SuzukiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$229.95 -
Boyesen - WPK-07AM - Impeller/Waterpump Cover - Magnesium - Honda
Boyesen
$194.95Boyesen - 09400975 - Impeller/Waterpump Cover - Magnesium - HondaFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$194.95 -
Boyesen - WPK06AB - Impeller/Waterpump Cover - Black - Honda
Boyesen
$194.95Boyesen - 09400896 - Impeller/Waterpump Cover - Black - HondaFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$194.95 -
Boyesen - WPK-38AB - Impeller/Waterpump Cover - Black - Yamaha
Boyesen
$194.95Boyesen - 09400977 - Impeller/Waterpump Cover - Black - YamahaFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$194.95 -
Boyesen - CC-27AB - Clutch Cover - Black - Suzuki
Boyesen
$95.95Boyesen - 09400682 - Clutch Cover - Black - SuzukiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - CC-07M - Clutch Cover - Magnesium - Honda
Boyesen
$95.95Boyesen - 09400443 - Clutch Cover - Magnesium - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - WPK-26B - Impeller/Waterpump Cover - Black - Suzuki
Boyesen
$229.95Boyesen - 09400567 - Impeller/Waterpump Cover - Black - SuzukiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$229.95 -
Boyesen - CC-06XB - Clutch Cover - Black - Honda
Boyesen
$95.95Boyesen - 09400614 - Clutch Cover - Black - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - WPK-26M - Impeller/Waterpump Cover - Magnesium - Suzuki
Boyesen
$229.95Boyesen - 09400568 - Impeller/Waterpump Cover - Magnesium - SuzukiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all...$229.95 -
Boyesen - SC-46M - Ignition Cover - Magnesium - Husqvarna/KTM
Boyesen
$87.95Boyesen - 09400697 - Ignition Cover - Magnesium - Husqvarna/KTMFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - WPK-27M - Supercooler Waterpump Cover - Magnesium - Suzuki
Boyesen
$229.95Boyesen - 09400691 - Supercooler Waterpump Cover - Magnesium - SuzukiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all...$229.95 -
Boyesen - WPK-27B - Supercooler Waterpump Cover - Black - Suzuki
Boyesen
$229.95Boyesen - 09400690 - Supercooler Waterpump Cover - Black - SuzukiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$229.95 -
Boyesen - WPK-12B - Impeller/Waterpump Cover - Black - Kawasaki
Boyesen
$194.95Boyesen - 09400408 - Impeller/Waterpump Cover - Black - KawasakiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...$194.95 -
Boyesen - SC-42B - Ignition Cover - Black - Husqvarna/KTM
Boyesen
$87.95Boyesen - 09400702 - Ignition Cover - Black - Husqvarna/KTMFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - 684 - Power Reed Set - Honda
Boyesen
$39.95Boyesen - 684 - Power Reed Set - HondaFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top accelerationSpecsRiding...$39.95 -
Boyesen - SC-41B - Ignition Cover - Black - KTM
Boyesen
$87.95Boyesen - 09400699 - Ignition Cover - Black - KTMFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the highest grade...$87.95 -
Boyesen - CC-12AB - Clutch Cover - Black - Kawasaki
Boyesen
$95.95Boyesen - CC12AB - Clutch Cover - Black - KawasakiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - CC-02AM - Clutch Cover - Magnesium - Honda
Boyesen
$95.95Boyesen - 09400223 - Clutch Cover - Magnesium - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - CCG-27 - Clutch Cover Replacement Gasket - Suzuki
Boyesen
$7.00Boyesen - 09341272 - Clutch Cover Replacement Gasket - SuzukiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a...$7.00 -
Boyesen - 698 - Power Reed Set - Suzuki
Boyesen
$39.95Boyesen - 698 - Power Reed Set - SuzukiFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top...$39.95 -
Boyesen - 693 - Power Reed Set - Kawasaki/Suzuki
Boyesen
$28.95Boyesen - 693 - Power Reed Set - Kawasaki/SuzukiFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top...$28.95 -
Boyesen - 646 - Power Reed Set - Kawasaki
Boyesen
$34.95Boyesen - 646 - Power Reed Set - KawasakiFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top accelerationSpecsBase...$34.95 -
Boyesen - 681 - Power Reed Set - Suzuki
Boyesen
$39.95Boyesen - 681 - Power Reed Set - SuzukiFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top accelerationSpecsBase...$39.95 -
Boyesen - 679 - Power Reed Set - Yamaha
Boyesen
$39.95Boyesen - 679R - Power Reed Set - YamahaFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top...$39.95
Boyesen Intake Systems, Reed Sets & Engine Components – Performance, Throttle Response & Durability
Boyesen is a longtime leader in performance intake and reed technology, designing components that enhance airflow, combustion efficiency and throttle response for motocross, trail and ATV applications. Their engineered solutions support both two-stroke and four-stroke platforms and are built to deliver measurable improvements in power, consistency and overall ride quality. Every Boyesen product is developed with precision fitment in mind, ensuring dependable, model-specific compatibility.
Core products such as the Rad Valve Reed Cage Assembly, Power Reeds and Super Stock reed sets are designed to improve low-end torque, smooth mid-range pull and sharpen throttle control. Boyesen offers tailored reed solutions for major manufacturers including Honda, Yamaha, Suzuki, Kawasaki, KTM, Polaris and Can-Am, helping optimize port timing and combustion efficiency. The brand also produces durable clutch covers, water pump/impeller covers and throttle-enhancing accessories built to withstand high-RPM stress and demanding off-road conditions.
Trusted by riders, tuners and racers worldwide, Boyesen combines proven engineering with durable materials to deliver consistent performance gains and long-term reliability. Whether upgrading a stock intake or building a performance-focused machine, Boyesen components offer smoother power delivery, reduced hesitation and improved engine control. Their commitment to airflow optimization and durability makes Boyesen a top choice for anyone seeking dependable, race-ready power upgrades.