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 - SSC040 - Super Stock Reed Set - Carbon - KTM
Boyesen
$39.95Boyesen - SSC040 - Super Stock Reed Set - Carbon - KTMFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsColor/FinishBlackProduct NameReed PetalBase ColorBlackModelSuper...$39.95 -
Out of stock
Boyesen - SSC031 - Super Stock Reed Set - Carbon - Yamaha
Boyesen
$50.95Boyesen - SSC031 - Super Stock Reed Set - Carbon - YamahaFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsRiding StyleOff-RoadProduct NameReed PetalBase...$50.95 -
Out of stock
Boyesen - SSC022 - Super Stock Reed Set - Carbon - Suzuki
Boyesen
$50.95Boyesen - SSC022 - Super Stock Reed Set - Carbon - SuzukiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsBase ColorBlackUnitsSetColor/FinishBlackModelSuper StockRiding...$50.95 -
Boyesen - SSC020 - Super Stock Reed Set - Carbon - Suzuki
Boyesen
$39.95Boyesen - SSC020 - Super Stock Reed Set - Carbon - SuzukiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsBase ColorBlackUnitsSetModelSuper StockProduct NameReed...$39.95 -
Boyesen - SSC013 - Super Stock Reed Set - Carbon - Kawasaki
Boyesen
$61.95Boyesen - SSC013 - Super Stock Reed Set - Carbon - KawasakiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsColor/FinishBlackProduct NameReed PetalRiding StyleOff-RoadBase...$61.95 -
Boyesen - SSC010 - Super Stock Reed Set - Carbon - Kawasaki/Suzuki
Boyesen
$39.95Boyesen - SSC010 - Super Stock Reed Set - Carbon - Kawasaki/SuzukiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsBase ColorBlackUnitsSetModelSuper StockRiding...$39.95 -
Boyesen - SSC011 - Super Stock Reed Set - Carbon - Kawasaki
Boyesen
$50.95Boyesen - SSC011 - Super Stock Reed Set - Carbon - KawasakiFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsMaterialCarbonBase ColorBlackModelSuper StockRiding...$50.95 -
Boyesen - SSC003 - Super Stock Reed Set - Carbon - Honda
Boyesen
$50.95Boyesen - SSC003 - Super Stock Reed Set - Carbon - HondaFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsRiding StyleOff-RoadModelSuper...$50.95 -
Boyesen - SSC001 - Super Stock Reed Set - Carbon - Husqvarna/Honda
Boyesen
$50.95Boyesen - SSC001 - Super Stock Reed Set - Carbon - Husqvarna/HondaFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsUnitsSetMaterialCarbonModelSuper StockBase ColorBlackProduct...$50.95 -
Boyesen - SSC000 - Super Stock Reed Set - Carbon - Honda/Suzuki/Yamaha
Boyesen
$39.95Boyesen - SSC000 - Super Stock Reed Set - Carbon - Honda/Suzuki/YamahaFeaturesEnhance performance at all rpmMatched to OEM specificationsSpecsMaterialCarbonBase ColorBlackModelSuper StockRiding...$39.95 -
Boyesen - WPK-38AM - Impeller/Waterpump Cover - Magnesium - Yamaha
Boyesen
$194.95Boyesen - 09400978 - Impeller/Waterpump Cover - Magnesium - YamahaFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all...$194.95 -
Boyesen - SC-21CM - Ignition Cover - Magnesium - Suzuki RM125
Boyesen
$87.95Boyesen - 09400217 - Ignition Cover - Magnesium - Suzuki RM125FeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - WPK-17B - Impeller/Waterpump Cover - Black - Kawasaki/Suzuki
Boyesen
$229.95Boyesen - 09400411 - Impeller/Waterpump Cover - Black - Kawasaki/SuzukiFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at...$229.95 -
Boyesen - WPI-32A - Impeller Pump - Yamaha YZ 250
Boyesen
$79.95Boyesen - WPI32A - Impeller Pump - Yamaha YZ 250FeaturesLess horsepower loss during the late stages of a raceExtend engine lifeImpellers are designed to minimize cavitationSpecsTypeWater...$79.95 -
Boyesen - WPI-02 - Impeller Pump - Husqvarna CR250
Boyesen
$79.95Boyesen - WPI02 - Impeller Pump - Husqvarna CR250FeaturesLess horsepower loss during the late stages of a raceExtend engine lifeImpellers are designed to minimize cavitationSpecsRiding...$79.95 -
Boyesen - 6118 - Power Reed Set - Honda
Boyesen
$48.95Boyesen - 10080037 - Power Reed Set - HondaFeaturesThey permit greater flow velocity over the entire range of operating pressuresIncreased performance from start-up to top accelerationSpecsBase...$48.95 -
Boyesen - WPK32AB - Impeller/Waterpump Cover - Black - Yamaha
Boyesen
$194.95Boyesen - 09400401 - 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 -
Out of stock
Boyesen - CC-07XB - Clutch Cover - Black - Honda
Boyesen
$95.95Boyesen - 09400564 - Clutch Cover - Black - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - CC-33M - Clutch Cover - Magnesium - Yamaha
Boyesen
$95.95Boyesen - 09400396 - Clutch Cover - Magnesium - YamahaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - CC-38M - Clutch Cover - Magnesium - Yamaha
Boyesen
$95.95Boyesen - 09400239 - Clutch Cover - Magnesium - YamahaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Out of stock
Boyesen - SC-02M - Ignition Cover - Magnesium - Honda CR250R
Boyesen
$87.95Boyesen - 09400210 - Ignition Cover - Magnesium - Honda CR250RFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - PSR-034 - Replacement Pro Series Reed Set - RAD-34J - Yamaha
Boyesen
$69.95Boyesen - 10080122 - Replacement Pro Series Reed Set - RAD-34J - YamahaFeaturesResponds quickly and accurately to changes in piston speed for smooth, dependable throttle responseOffers the quickest...$69.95 -
Out of stock
Boyesen - WPK32AM - Impeller/Waterpump Cover - Magnesium - Yamaha
Boyesen
$194.95Boyesen - 09400402 - Impeller/Waterpump Cover - Magnesium - YamahaFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all...$194.95 -
Boyesen - WPK-06M - Impeller/Waterpump Cover - Magnesium - Honda
Boyesen
$194.95Boyesen - 09400398 - 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 - RAD-21J - Rad Valve Reed Cage Assembly - Suzuki
Boyesen
$179.95Boyesen - 10080033 - Rad Valve Reed Cage Assembly - SuzukiFeaturesMade of one-piece aluminum castings and bolts in easily; no modifications necessaryProvide quicker, sharper throttle response and...$179.95 -
Out of stock
Boyesen - SC-46B - Ignition Cover - Black - Husqvarna/KTM
Boyesen
$87.95Boyesen - 09400696 - 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 -
Out of stock
Boyesen - CC-02M - Clutch Cover - Magnesium - Honda
Boyesen
$95.95Boyesen - 09400222 - Clutch Cover - Magnesium - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...$95.95 -
Boyesen - WPK-18B - Impeller/Waterpump Cover - Black - Kawasaki
Boyesen
$194.95Boyesen - 09400576 - 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-03M - Ignition Cover - Magnesium - Honda CR500R
Boyesen
$87.95Boyesen - 09400212 - Ignition Cover - Magnesium - Honda CR500RFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - SC-12M - Ignition Cover - Magnesium - Kawasaki KX250
Boyesen
$87.95Boyesen - 09400215 - Ignition Cover - Magnesium - Kawasaki KX250FeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - SC-32AM - Ignition Cover - Magnesium - Yamaha YZ 250/YZ 250 X
Boyesen
$87.95Boyesen - 09400220 - Ignition Cover - Magnesium - Yamaha YZ 250/YZ 250 XFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast...$87.95 -
Boyesen - SC-23M - Ignition Cover - Magnesium - Suzuki RM250
Boyesen
$87.95Boyesen - 09400218 - Ignition Cover - Magnesium - Suzuki RM250FeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Boyesen - SC-11AM - Ignition Cover - Magnesium - Kawasaki KX125
Boyesen
$87.95Boyesen - 09400214 - Ignition Cover - Magnesium - Kawasaki KX125FeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...$87.95 -
Out of stock
Boyesen - PRO-210 - Pro Series Reed Set - Suzuki
Boyesen
$62.95Boyesen - 10080051 - Pro Series Reed Set - SuzukiFeaturesHigh-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed designOffers the quickest acceleration any reed can...$62.95 -
Boyesen - RAD-30C - Rad Valve Reed Cage Assembly - Yamaha
Boyesen
$169.95Boyesen - 10080173 - Rad Valve Reed Cage Assembly - YamahaFeaturesMade of one-piece aluminum castings and bolts in easily; no modifications necessaryProvide quicker, sharper throttle response and...$169.95 -
Boyesen - RAD-33J - Rad Valve Reed Cage Assembly - Yamaha
Boyesen
$179.95Boyesen - 10080115 - Rad Valve Reed Cage Assembly - YamahaFeaturesMade of one-piece aluminum castings and bolts in easily; no modifications necessaryProvide quicker, sharper throttle response and...$179.95 -
Boyesen - PSR-033 - Replacement Pro Series Reed Set - RAD-33J - Yamaha
Boyesen
$69.95Boyesen - 10080121 - Replacement Pro Series Reed Set - RAD-33J - YamahaFeaturesResponds quickly and accurately to changes in piston speed for smooth, dependable throttle responseOffers the quickest...$69.95 -
Boyesen - PW-40 - Power Wing Fuel Atomizer - Yamaha
Boyesen
$129.95Boyesen - 10500245 - Power Wing Fuel Atomizer - YamahaFeaturesAerodynamic design maximizes velocity generation and power gainPrecision fit ensures perfect alignment and easy installationIncreases...$129.95 -
Boyesen - RAD-12I - Rad Valve Reed Cage Assembly - Kawasaki
Boyesen
$179.95Boyesen - 10080031 - Rad Valve Reed Cage Assembly - KawasakiFeaturesMade of one-piece aluminum castings and bolts in easily; no modifications necessaryProvide quicker, sharper throttle response and...$179.95 -
Boyesen - PSR-211 - Replacement Pro Series Reed Set - RAD24K - Suzuki
Boyesen
$69.95Boyesen - 10080023 - Replacement Pro Series Reed Set - RAD24K - SuzukiFeaturesResponds quickly and accurately to changes in piston speed for smooth, dependable throttle responseOffers the quickest...$69.95
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.