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Boyesen

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 - WPK-07M - Impeller/Waterpump Cover - Magnesium - Honda Boyesen - WPK-07M - Impeller/Waterpump Cover - Magnesium - Honda

    Boyesen - WPK-07M - Impeller/Waterpump Cover - Magnesium - Honda

    Boyesen

    $194.95
    Boyesen - 09400263 - 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
    Qty in Cart: 0
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    $194.95
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  • Boyesen - WPC-12DM - Water Pump Cover - Magnesium - KX250 Boyesen - WPC-12DM - Water Pump Cover - Magnesium - KX250

    Boyesen - WPC-12DM - Water Pump Cover - Magnesium - KX250

    Boyesen

    $129.95
    Boyesen - 09400473 - Water Pump Cover - Magnesium - KX250FeaturesSpecsBase FinishPowder-CoatedColor/FinishMagnesiumColor/FinishPowder-CoatedProduct NameCoverUnitsEachMaterialAluminumRiding...
    $129.95
    Qty in Cart: 0
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    $129.95
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  • Boyesen - CC-46M - Clutch Cover - Magnesium - Husqvarna/KTM Boyesen - CC-46M - Clutch Cover - Magnesium - Husqvarna/KTM

    Boyesen - CC-46M - Clutch Cover - Magnesium - Husqvarna/KTM

    Boyesen

    $95.95
    Boyesen - 09400694 - Clutch Cover - Magnesium - Husqvarna/KTMFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - CC-07AM - Clutch Cover - Magnesium - Honda Boyesen - CC-07AM - Clutch Cover - Magnesium - Honda

    Boyesen - CC-07AM - Clutch Cover - Magnesium - Honda

    Boyesen

    $117.95
    Boyesen - 09400969 - Clutch Cover - Magnesium - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $117.95
    Qty in Cart: 0
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    $117.95
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  • Boyesen - CC-44B - Clutch Cover - Black - Husaberg/KTM Boyesen - CC-44B - Clutch Cover - Black - Husaberg/KTM

    Boyesen - CC-44B - Clutch Cover - Black - Husaberg/KTM

    Boyesen

    $95.95
    Boyesen - 09400570 - Clutch Cover - Black - Husaberg/KTMFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - WPK-26AM - Impeller/Waterpump Cover - Magnesium - Suzuki Boyesen - WPK-26AM - Impeller/Waterpump Cover - Magnesium - Suzuki

    Boyesen - WPK-26AM - Impeller/Waterpump Cover - Magnesium - Suzuki

    Boyesen

    $229.95
    Boyesen - 09400862 - 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
    Qty in Cart: 0
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    $229.95
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  • Boyesen - CC-27AM - Clutch Cover - Magnesium - Suzuki Boyesen - CC-27AM - Clutch Cover - Magnesium - Suzuki

    Boyesen - CC-27AM - Clutch Cover - Magnesium - Suzuki

    Boyesen

    $95.95
    Boyesen - 09400683 - Clutch Cover - Magnesium - SuzukiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - CC-06XM - Clutch Cover - Magnesium - Honda Boyesen - CC-06XM - Clutch Cover - Magnesium - Honda

    Boyesen - CC-06XM - Clutch Cover - Magnesium - Honda

    Boyesen

    $95.95
    Boyesen - 09400615 - Clutch Cover - Magnesium - HondaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - WPK-06B - Impeller/Waterpump Cover - Black - Honda Boyesen - WPK-06B - Impeller/Waterpump Cover - Black - Honda

    Boyesen - WPK-06B - Impeller/Waterpump Cover - Black - Honda

    Boyesen

    $194.95
    Boyesen - 09400397 - 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
    Qty in Cart: 0
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    $194.95
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  • Boyesen - CC-12CB - Clutch Cover - Black - Kawasaki Boyesen - CC-12CB - Clutch Cover - Black - Kawasaki

    Boyesen - CC-12CB - Clutch Cover - Black - Kawasaki

    Boyesen

    $95.95
    Boyesen - 09400389 - Clutch Cover - Black - KawasakiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - WPK-10B - Impeller/Waterpump Cover - Black - Kawasaki/Suzuki Boyesen - WPK-10B - Impeller/Waterpump Cover - Black - Kawasaki/Suzuki

    Boyesen - WPK-10B - Impeller/Waterpump Cover - Black - Kawasaki/Suzuki

    Boyesen

    $194.95
    Boyesen - 09400469 - 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...
    $194.95
    Qty in Cart: 0
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    Price:
    $194.95
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  • Boyesen - CC-32AM - Clutch Cover - Magnesium - Yamaha Boyesen - CC-32AM - Clutch Cover - Magnesium - Yamaha

    Boyesen - CC-32AM - Clutch Cover - Magnesium - Yamaha

    Boyesen

    $95.95
    Boyesen - 09400236 - Clutch Cover - Magnesium - YamahaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - SC-12AM - Ignition Cover - Magnesium - Kawasaki KX250 Boyesen - SC-12AM - Ignition Cover - Magnesium - Kawasaki KX250

    Boyesen - SC-12AM - Ignition Cover - Magnesium - Kawasaki KX250

    Boyesen

    $87.95
    Boyesen - 09400381 - 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
    Qty in Cart: 0
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    $87.95
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  • Boyesen - SC-33AB - Ignition Cover - Black - Yamaha Boyesen - SC-33AB - Ignition Cover - Black - Yamaha

    Boyesen - SC-33AB - Ignition Cover - Black - Yamaha

    Boyesen

    $87.95
    Boyesen - 09400383 - Ignition Cover - Black - YamahaFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the highest...
    $87.95
    Qty in Cart: 0
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    $87.95
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  • Boyesen - CC-11AM - Clutch Cover - Magnesium - Kawasaki Boyesen - CC-11AM - Clutch Cover - Magnesium - Kawasaki

    Boyesen - CC-11AM - Clutch Cover - Magnesium - Kawasaki

    Boyesen

    $95.95
    Boyesen - 09400228 - Clutch Cover - Magnesium - KawasakiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - CC-37B - Clutch Cover - Black - Yamaha Boyesen - CC-37B - Clutch Cover - Black - Yamaha

    Boyesen - CC-37B - Clutch Cover - Black - Yamaha

    Boyesen

    $95.95
    Boyesen - 09400234 - Clutch Cover - Black - YamahaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - CC-21AM - Clutch Cover - Magnesium - Suzuki Boyesen - CC-21AM - Clutch Cover - Magnesium - Suzuki

    Boyesen - CC-21AM - Clutch Cover - Magnesium - Suzuki

    Boyesen

    $95.95
    Boyesen - 09400231 - Clutch Cover - Magnesium - SuzukiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - CC-37M - Clutch Cover - Magnesium - Yamaha Boyesen - CC-37M - Clutch Cover - Magnesium - Yamaha

    Boyesen - CC-37M - Clutch Cover - Magnesium - Yamaha

    Boyesen

    $95.95
    Boyesen - 09400235 - Clutch Cover - Magnesium - YamahaFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - CC-12M - Clutch Cover - Magnesium - Kawasaki Boyesen - CC-12M - Clutch Cover - Magnesium - Kawasaki

    Boyesen - CC-12M - Clutch Cover - Magnesium - Kawasaki

    Boyesen

    $95.95
    Boyesen - 09400229 - Clutch Cover - Magnesium - KawasakiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
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    $95.95
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  • Boyesen - SC-01AM - Ignition Cover - Magnesium - Honda CR125R Boyesen - SC-01AM - Ignition Cover - Magnesium - Honda CR125R

    Boyesen - SC-01AM - Ignition Cover - Magnesium - Honda CR125R

    Boyesen

    $87.95
    Boyesen - 09400209 - Ignition Cover - Magnesium - Honda CR125RFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from the...
    $87.95
    Qty in Cart: 0
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    $87.95
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  • Boyesen - PRO-206 - Pro Series Reed Set - Kawasaki Boyesen - PRO-206 - Pro Series Reed Set - Kawasaki

    Boyesen - PRO-206 - Pro Series Reed Set - Kawasaki

    Boyesen

    $62.95
    Boyesen - 10080049 - 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
    Qty in Cart: 0
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    $62.95
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  • Boyesen - PRO-216 - Pro Series Reed Set - Kawasaki Boyesen - PRO-216 - Pro Series Reed Set - Kawasaki

    Boyesen - PRO-216 - Pro Series Reed Set - Kawasaki

    Boyesen

    $62.95
    Boyesen - 10080100 - 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
    Qty in Cart: 0
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    $62.95
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  • Boyesen - PRO-200 - Pro Series Reed Set - Honda Boyesen - PRO-200 - Pro Series Reed Set - Honda

    Boyesen - PRO-200 - Pro Series Reed Set - Honda

    Boyesen

    $69.95
    Boyesen - 10080046 - 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...
    $69.95
    Qty in Cart: 0
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    $69.95
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  • Boyesen - PRO-217 - Pro Series Reed Set - Yamaha Boyesen - PRO-217 - Pro Series Reed Set - Yamaha

    Boyesen - PRO-217 - Pro Series Reed Set - Yamaha

    Boyesen

    $62.95
    Boyesen - 10080101 - Pro Series Reed Set - YamahaFeaturesHigh-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed designOffers the quickest acceleration any reed can...
    $62.95
    Qty in Cart: 0
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    $62.95
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  • Boyesen - 6129 - Power Reed Petal Set - Kawasaki Boyesen - 6129 - Power Reed Petal Set - Kawasaki

    Boyesen - 6129 - Power Reed Petal Set - Kawasaki

    Boyesen

    $39.95
    Boyesen - 10080095 - Power Reed Petal Set - KawasakiFeaturesThe top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMsThe stiffer, bottom reed is ported to...
    $39.95
    Qty in Cart: 0
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    Price:
    $39.95
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  • Boyesen - PRO-215 - Pro Series Reed Set - Honda Boyesen - PRO-215 - Pro Series Reed Set - Honda

    Boyesen - PRO-215 - Pro Series Reed Set - Honda

    Boyesen

    $62.95
    Boyesen - 10080099 - 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...
    $62.95
    Qty in Cart: 0
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    Price:
    $62.95
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  • Boyesen - PRO-208 - Pro Series Reed Set - Suzuki Boyesen - PRO-208 - Pro Series Reed Set - Suzuki

    Boyesen - PRO-208 - Pro Series Reed Set - Suzuki

    Boyesen

    $62.95
    Boyesen - 10080050 - 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
    Qty in Cart: 0
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    $62.95
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  • Boyesen - 6107 - Power Reed Petal Set - Polini Boyesen - 6107 - Power Reed Petal Set - Polini

    Boyesen - 6107 - Power Reed Petal Set - Polini

    Boyesen

    $28.95
    Boyesen - 10080091 - Power Reed Petal Set - PoliniFeaturesThe top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMsThe stiffer, bottom reed is ported to...
    $28.95
    Qty in Cart: 0
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    Price:
    $28.95
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  • Boyesen - 6119 - Power Reed Petal Set - Yamaha Boyesen - 6119 - Power Reed Petal Set - Yamaha

    Boyesen - 6119 - Power Reed Petal Set - Yamaha

    Boyesen

    $39.95
    Boyesen - 10080043 - Power Reed Petal Set - YamahaFeaturesThe top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMsThe stiffer, bottom reed is ported to...
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
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  • Boyesen - CC22B - Clutch Cover - Black - Suzuki Boyesen - CC22B - Clutch Cover - Black - Suzuki

    Boyesen - CC22B - Clutch Cover - Black - Suzuki

    Boyesen

    $95.95
    Boyesen - CC22B - Clutch Cover - Black - SuzukiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect, leak-free...
    $95.95
    Qty in Cart: 0
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    Price:
    $95.95
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  • Boyesen - PSR-89 - Pro Series Reed Set - Suzuki Boyesen - PSR-89 - Pro Series Reed Set - Suzuki

    Boyesen - PSR-89 - Pro Series Reed Set - Suzuki

    Boyesen

    $64.95
    Boyesen - PRO89 - 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 offer;...
    $64.95
    Qty in Cart: 0
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    Price:
    $64.95
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  • Boyesen - CC-22M - Clutch Cover - Magnesium - Suzuki Boyesen - CC-22M - Clutch Cover - Magnesium - Suzuki

    Boyesen - CC-22M - Clutch Cover - Magnesium - Suzuki

    Boyesen

    $95.95
    Boyesen - 09400232 - Clutch Cover - Magnesium - SuzukiFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect,...
    $95.95
    Qty in Cart: 0
    Quantity:
    Price:
    $95.95
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  • Boyesen - WPK-44B - Impeller/Waterpump Cover - Black - Husaberg/Husqvarna/KTM Boyesen - WPK-44B - Impeller/Waterpump Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen - WPK-44B - Impeller/Waterpump Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen

    $194.95
    Boyesen - 09401234 - Impeller/Waterpump Cover - Black - Husaberg/Husqvarna/KTMFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the...
    $194.95
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • Boyesen - CC-44AO - Clutch Cover - Orange - KTM Boyesen - CC-44AO - Clutch Cover - Orange - KTM

    Boyesen - CC-44AO - Clutch Cover - Orange - KTM

    Boyesen

    $105.95
    Boyesen - 09401233 - Clutch Cover - Orange - KTMFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a perfect, leak-free...
    $105.95
    Qty in Cart: 0
    Quantity:
    Price:
    $105.95
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  • Boyesen - WPK-44O - Impeller/Waterpump Cover - Orange - KTM Boyesen - WPK-44O - Impeller/Waterpump Cover - Orange - KTM

    Boyesen - WPK-44O - Impeller/Waterpump Cover - Orange - KTM

    Boyesen

    $199.95
    Boyesen - 09401236 - Impeller/Waterpump Cover - Orange - KTMFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing the flow at all rpm...
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
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  • Boyesen - WPK-44M - Impeller/Waterpump Cover - Magnesium - Husaberg/Husqvarna/KTM Boyesen - WPK-44M - Impeller/Waterpump Cover - Magnesium - Husaberg/Husqvarna/KTM

    Boyesen - WPK-44M - Impeller/Waterpump Cover - Magnesium - Husaberg/Husqvarna/KTM

    Boyesen

    $194.95
    Boyesen - 09401235 - Impeller/Waterpump Cover - Magnesium - Husaberg/Husqvarna/KTMFeaturesThis high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolantBy increasing...
    $194.95
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • Boyesen - CC-44AB - Clutch Cover - Black - Husaberg/Husqvarna/KTM Boyesen - CC-44AB - Clutch Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen - CC-44AB - Clutch Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen

    $95.95
    Boyesen - 09401231 - Clutch Cover - Black - Husaberg/Husqvarna/KTMFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a...
    $95.95
    Qty in Cart: 0
    Quantity:
    Price:
    $95.95
    Subtotal:
  • Boyesen - SC-41AB - Ignition Cover - Black - Husaberg/Husqvarna/KTM Boyesen - SC-41AB - Ignition Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen - SC-41AB - Ignition Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen

    $87.95
    Boyesen - 09401266 - Ignition Cover - Black - Husaberg/Husqvarna/KTMFeaturesSeals properly, guarding inside of engine from dirt and water and outlasts stock coversBoyesen Factory Covers are cast from...
    $87.95
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  • Boyesen - CC-45B - Clutch Cover - Black - Husaberg/Husqvarna/KTM Boyesen - CC-45B - Clutch Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen - CC-45B - Clutch Cover - Black - Husaberg/Husqvarna/KTM

    Boyesen

    $95.95
    Boyesen - 09401263 - Clutch Cover - Black - Husaberg/Husqvarna/KTMFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced for a...
    $95.95
    Qty in Cart: 0
    Quantity:
    Price:
    $95.95
    Subtotal:
  • Boyesen - CC-45M - Clutch Cover - Magnesium - Husaberg/Husqvarna/KTM Boyesen - CC-45M - Clutch Cover - Magnesium - Husaberg/Husqvarna/KTM

    Boyesen - CC-45M - Clutch Cover - Magnesium - Husaberg/Husqvarna/KTM

    Boyesen

    $95.95
    Boyesen - 09401264 - Clutch Cover - Magnesium - Husaberg/Husqvarna/KTMFeaturesLightweight factory clutch covers provide years of outstanding protection; guaranteed not to warpIndividually surfaced...
    $95.95
    Qty in Cart: 0
    Quantity:
    Price:
    $95.95
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Adding your products to cart

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.