Dirt Bike Parts
Modern dirt bikes take serious abuse, so the parts on your machine need to match the way you ride. Whether you hit motocross tracks, single-track, or rough enduro terrain, the right dirt bike parts make a huge difference in power, handling, and durability. Riders choose high quality aftermarket components because they outperform stock parts and hold up when the pressure is on. Our selection is built for anyone who wants stronger performance and reliability on every jump, corner, and trail.
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Fmf - 042037 - PowerBomb Header - Fits 2004-2008 Kawasaki KX250F, 2004-2006 Suzuki RM-Z250
FMF
$249.99Fmf - 18220012 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$249.99 -
Fmf - 044244 - PowerBomb Header - Fits 2007-2009 Yamaha YZ250F
FMF
$249.99Fmf - 18220139 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$249.99 -
Fmf - 040641 - Replacement End Cap Kit - Stainless Steel - RCT
FMF
$49.99Fmf - 18600561 - Replacement End Cap Kit - Stainless Steel - RCTFeaturesSpecsModelFactory 4.1 RCT<$49.99 -
Fmf - 041426 - MegaBomb Header - Fits 2007-2021 Honda CRF150R
FMF
$374.99Fmf - 18220290 - MegaBomb HeaderFeaturesImproved bottom to mid-range powerProduce the low end of a longer header and the top end of a short headerLess susceptible to damage than a long headerRuns...$374.99 -
Fmf - 042094 - PowerBomb Header - Fits 2006-2011 Kawasaki KX450F
FMF
$249.99Fmf - 18220083 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$249.99 -
Pro Circuit - PH05125 - Works Pipe - Fits 2005-2007 Honda CR125R
Pro Circuit
$337.95Pro Circuit - 18200178 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$337.95 -
Fmf - 041118 - PowerBomb Header - Fits 2004-2005 Honda CRF250R
FMF
$249.99Fmf - 18220036 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$249.99 -
Pro Circuit - PY05125P - Platinum Head Pipe - Fits 2003-2004 Honda CR250R
Pro Circuit
$352.95Pro Circuit - 18200137 - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$352.95 -
Fmf - 023060 - Gnarly Pipe
FMF
$299.99Fmf - 18200169 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$299.99 -
Pro Circuit - PY05125 - Works Pipe
Pro Circuit
$337.95Pro Circuit - 18200136 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$337.95 -
Pro Circuit - PY05250P - Platinum Head Pipe - Fits 2000-2001 Yamaha YZ250
Pro Circuit
$365.95Pro Circuit - 18200139 - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$365.95 -
Fmf - 021044 - Fatty Pipe - Fits 2005-2007 Honda CR85R
FMF
$299.99Fmf - 18200160 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated finishSpecs$299.99 -
Fmf - 024049 - Fatty Pipe - Fits 1998-2013 Kawasaki KX100
FMF
$319.99Fmf - 18200132 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated finishSpecs$319.99 -
Pro Circuit - PS04250 - Works Pipe - Fits 2003-2006 Suzuki 3 RM65
Pro Circuit
$349.95Pro Circuit - 18200100 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$349.95 -
Pro Circuit - PK04250 - Works Pipe
Pro Circuit
$349.95Pro Circuit - 18200066 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$349.95 -
Fmf - 025070 - Gnarly Pipe - Fits 2003-2006 Gas Gas 300, 2004-2010 Honda 300
FMF
$329.99Fmf - 18200081 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$329.99 -
Pro Circuit - PK04125 - Works Pipe - Fits 2004-2007 Kawasaki KX125
Pro Circuit
$337.95Pro Circuit - 18200042 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$337.95 -
Fmf - 041249 - Q4 Muffler - Fits Honda 2004-2005 CRF250R, 2004-2009 CRF250X
FMF
$499.99Fmf - 18210653 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$499.99 -
Fmf - 044232 - Q4 Muffler - Fits Yamaha 2007-2013 WR250F, 2006-2009 YZ250F, 2007-2013 WR450F, 2007-2011 WR450F, 2006-2009 YZ450F
FMF
$499.99Fmf - 18210581 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$499.99 -
Fmf - 041273 - Powercore 4 Muffler - Fits 2004-2009 Honda CRF250X
FMF
$449.99Fmf - 18210662 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99 -
Fmf - 041287 - Q4 Muffler - Fits 2007-2024 Honda CRF150R
FMF
$499.99Fmf - 18210543 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$499.99 -
Fmf - 043095 - Powercore 4 Muffler
FMF
$269.99Fmf - 18210521 - Powercore 4 MufflerFeaturesFeatures a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel headerPounds lighter than...$269.99 -
Pro Circuit - SS04250-RE - R-304 Silencer - Fits 2003-2004 Kawasaki KX250
Pro Circuit
$206.29Pro Circuit - 18210058 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Fmf - 025131 - Gnarly Pipe - Fits 2001-2002 KTM 3 250 EXC/SX, 1992-1996 Honda CR250R, 2011-2016 Husqvarna TE 250/300
FMF
$329.99Fmf - 18201112 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$329.99 -
Pro Circuit - SH89500-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18210128 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Pro Circuit - PH02250P - Platinum Head Pipe
Pro Circuit
$365.95Pro Circuit - PH02250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$365.95 -
Pro Circuit - ST03250-RE - R-304 Silencer - Fits 2000-2001 Kawasaki KX65, 2004-2009 KTM 250 EXC
Pro Circuit
$206.29Pro Circuit - 18210054 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Fmf - 040642 - Replacement End Cap Kit - Titanium - RCT
FMF
$59.99Fmf - 18600562 - Replacement End Cap Kit - Titanium - RCTFeaturesSpecsMaterialTitanium$59.99 -
Fmf - 025090 - Factory Fatty Pipe
FMF
$299.99Fmf - 18200496 - Factory Fatty PipeFeaturesBroadens and smooths out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-revNo matter what...$299.99 -
Pro Circuit - 4H06150 - T-4 Exhaust - Fits 1998-2003 Honda XR70R
Pro Circuit
$418.95Pro Circuit - 18200586 - T-4 ExhaustFeaturesExtensively track- and dyno-testedSteel Allen head screws make repacking an easy taskExclusive E-glass pillow packingIncludes USFS-approved spark arrestor...$418.95 -
Fmf - 025087 - Gnarly Pipe
FMF
$329.99Fmf - 18200417 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$329.99 -
Fmf - 041178 - Powercore 4 Exhaust
FMF
$279.99Fmf - 18200252 - Powercore 4 ExhaustFeaturesComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...$279.99 -
Pro Circuit - PH97250P - Platinum Head Pipe
Pro Circuit
$393.95Pro Circuit - PH97250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$393.95 -
Fmf - 043309 - MegaBomb Header
FMF
$374.99Fmf - 18220380 - MegaBomb HeaderFeaturesImproved bottom to mid-range powerProduce the low end of a longer header and the top end of a short headerLess susceptible to damage than a long headerRuns...$374.99 -
Fmf - 011315 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011315 - Pipe Spring/O-Rings KitFeaturesSpecsUnitsKitMaterial$12.99 -
Pro Circuit - PK00250P - Platinum Head Pipe
Pro Circuit
$365.95Pro Circuit - PK00250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$365.95 -
Fmf - 011314 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011314 - Pipe Spring/O-Rings KitFeaturesSpecsMaterialSteelRid$12.99 -
Fmf - 011310 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011310 - Pipe Spring/O-Rings KitFeaturesSpecsTypeExhaustMater$12.99 -
Pro Circuit - PK95200DP2 - Platinum 2 Pipe
Pro Circuit
$365.95Pro Circuit - PK95200DP2 - Platinum 2 PipeFeaturesInnovative design helps with increased bottom to mid-range power, making it perfect for unique styles of ridingNickel-plated finish to prevent...$365.95 -
Pro Circuit - PK02065 - Works Pipe
Pro Circuit
$321.95Pro Circuit - PK02065 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$321.95
High Performance Dirt Bike and Motocross Components
Every piece of your dirt bike contributes to how confidently you ride. Upgrading to better engine parts, clutch components, and fuel system pieces gives you stronger acceleration and cleaner throttle response when the track gets rough. Suspension upgrades like fork springs, seals, shock components, and linkage parts help your bike stay predictable through whoops, ruts, and landings. Controls matter just as much, so riders improve their cockpit with new handlebars, grips, levers, and foot pegs that boost comfort and precision at high speed.
Performance braking and drive components can completely transform how a dirt bike handles. Rotors, pads, chains, sprockets, wheel bearings, and hardware all play a role in keeping traction consistent and stopping power reliable. Even routine maintenance items like air filters, spark plugs, fluids, cables, and gaskets impact how well your bike performs under load. Quality parts help you ride longer, harder, and with more confidence, whether you are chasing lap times or carving your favorite trails.
Our goal is simple. Give riders access to dirt bike parts that hold up to real riding conditions and deliver true performance gains. When you twist the throttle, charge a jump, or slam into a corner, you should trust that every component on your bike can take the hit and keep going. Explore our full lineup of dirt bike and motocross parts and build a machine that is ready for whatever you throw at it.