Honda CRF R 450 Parts — Dirt Motorcycle

FMF Racing’s PowerBomb 041082 header is engineered for four-stroke performance enthusiasts seeking optimised exhaust flow and power gains. The innovative PowerBomb module, strategically positioned in the header’s initial stage, increases exhaust velocity and engine response by expanding and contracting exhaust pulses. This unique design boosts flow by nearly 10% and subtly reduces sound output, thanks to the additional surface area acting as a “pre-muffler.” Crafted from durable stainless steel, the PowerBomb 041082 delivers outstanding performance for serious riders. Features Incorporates FMF’s patented PowerBomb chamber for expanded exhaust flow and performance Positioning optimises exhaust velocity for increased power and throttle response Functions as a “pre-muffler,” lowering overall sound output Durable stainless steel construction for longevity and dependability Designed for closed course competition use only Weighs only 1.6 lbs for minimal added mass Specifications Item ID: 041082 Type: Header Header Construction: Stainless Steel Header Type: PowerBomb Weight: 1.6 lbs Carb Warning: No Vehicle Fitment HONDA CRF450R (2004–2008) CRF450X (2005–2009, 2012–2017) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2004 HONDA CRF R 450 2005-2008 HONDA CRF X 450 2005-2009 HONDA CRF X 450 2012-2017

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FMF EXHAUST PIPE Compatible Models: Honda CRF450R 2009-2010 Part No: 06-1988.FMF.MBT  FMF Part No.: 041345 Features: Works well with Sound Restricting Mufflers. Effectively reduces sound output by as much as 1.5dB. Less susceptible to damage than a longer header. Improved bottom to mid-range power. Note: Images are representative of product type; actual product may vary in dimensions, mounting, etc., in order to correctly fit your model. Legal Information: This product is legal only for closed course competition use and is not legal for use on street vehicles or recreational vehicles. Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2009-2010

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Slip-on quiet-performance muffler engineered for off-road endurance, employing internal chambers, baffles and multi-stage packing to reduce sound while maintaining broad power gains. Includes a USFS–compliant spark arrestor and is supplied with a quiet insert. Features Reduced output sound; compliant with USFS and FIM World Enduro sound regulations Power gains across the rpm range Spark arrestor included Lighter than stock Rugged construction for off-road durability Quiet insert included Manufactured in the USA Notice: Closed course use only Fitment note: use with matching FMF header #041555 only Specifications Type: Slip-on Configuration: Single Canister construction: Aluminium Finish: Natural Mid-pipe: Stainless steel Endcap: Stainless steel Spark arrestor: Screen insert (included) Quiet insert: Included CARB warning: No Cross-Reference OEM Part Numbers FMF 041558 (Q4 Hex slip-on) FMF header: 041555 (required for fitment) Vehicle Fitments Honda CRF450R 2017–2020 Honda CRF450RX 2017–2020 Honda CRF450RWE 2019 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2020 HONDA CRF RWE 450 2019

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HONDA Compatibility: CRF450R 2017 - 2020 CRF450RX 2017 - 2020 CRF450RWE 2019 FMF 041557 When designing the PowerCore 4 HEX, we looked at our top-of-the-line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower, and rugged durability all at a price that won't break the bank. Features: Overall increase in power and torque. Durable stainless steel and aluminium construction. Space Age internal packing material for maximum longevity. Internal shape of core uses Hi-Flo technology. Enhanced sonic evacuation provides for higher flow and increased power. Includes removable spark arrestor. Notice: Closed Course Use Only Item ID: 041557 Type: Slip-On Configuration: Single Construction: Aluminium Finish: Natural Midpipe: Stainless Steel Endcap: Stainless Steel Spark Arrestor: Screen Insert (included) Carb Warning: No Quiet Insert: Quiet Insert (sold separately) Fitment: Use w/ FMF header #041555 only Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2020 HONDA CRF RWE 450 2019

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HONDA Compatibility: CRF450R 2017 - 2020 CRF450RX 2017 - 2020 CRF450RWE 2019 FMF 041560 The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory. Notice: Closed Course Use Only Item ID: 041560 Type: Slip-On Configuration: Single Construction: Titanium Finish: Blue Anodized Midpipe: Stainless Steel Endcap: Carbon Spark Arrestor: Screen Insert (included) Carb Warning: No Quiet Insert: 94dB Insert (included) Fitment: Use w/ FMF header #041555 only Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2020 HONDA CRF RWE 450 2019

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The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory. Features Resonance Chamber Technology™ used internally and externally Shorter overall length to reduce crash damage risk Factory Forward Engineering with the muffler positioned closer to the motor to centralise mass Constructed from aerospace-grade materials to exacting specifications Manufactured in Southern California Closed course use only Fitment: use with FMF header #041555 only Specifications Item ID: 041559 Manufacturer reference: FMF 041559 Type: Slip-On Configuration: Single Construction: Aluminium Finish: Natural Midpipe: Stainless steel Endcap: Carbon Spark arrestor: Screen insert (included) Quiet insert: 94 dB insert (included) Carb warning: No Vehicle Fitments Honda CRF450R 2017–2020 Honda CRF450RX 2017–2020 Honda CRF450RWE 2019 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2020 HONDA CRF RWE 450 2019

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Designed specifically for FMF Racing exhaust systems, this single side panel provides a precise fit for 2014–2015 Honda CRF250R and 2013–2015 Honda CRF450R models. Manufactured by UFO and tailored to FMF’s exacting standards, this panel replaces worn or damaged units, maintaining the robust performance and styling your machine demands. Features Direct replacement for factory side panel on designated Honda models Lightweight construction for uncompromised handling Precision-moulded for secure, vibration-resistant mounting Designed specifically for compatibility with FMF single exhaust configurations Specifications Item ID: 014806 Weight: 0 lbs Vehicle Fitment Honda CRF250R (2014–2015) CRF450R (2013–2015) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 250 2014-2017 HONDA CRF R 450 2013-2016 HONDA CRF R 450 2014-2016 HONDA CRF 250 2014-2017 HONDA CRF 450 2013-2016

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Delivering advanced performance and durability, the FMF Racing Factory 4.1 RCT Titanium Slip-On incorporates state-of-the-art Resonance Chamber Technology™ both inside and out. Its compact, forward-engineered design minimises exposure to crash damage while centralising mass for better handling. Manufactured entirely in Southern California from aerospace-grade titanium, it offers tremendous power gains across the RPM range and significant weight reduction, providing a cutting-edge upgrade for serious riders. Features Resonance Chamber Technology™ optimises power and reduces sound Compact, centralised design increases durability and handling performance Manufactured from proprietary alloy-grade titanium Compatible with FMF and OEM headers for versatility RTS (Rapid Tuning System) allows quick adjustments Includes spark arrestor screen and 94dB quiet insert for track compliance Substantial weight savings boost overall performance Designed for closed-course use only Specifications Type: Slip-On Configuration: Single Construction: Titanium Finish: Natural Midpipe: Titanium Endcap: Titanium Included Spark Arrestor: Screen Insert Included Quiet Insert: 94dB Insert Carb Warning: No Weight: 4 lbs Manufacturer Item ID: 041509 Vehicle Fitment Honda CRF450R (2013–2016) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2015-2016 HONDA CRF R 450 2013-2014

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Engineered for enthusiasts seeking race-inspired performance at an accessible price, the FMF Racing Powercore 4 041276 slip-on exhaust delivers a substantial boost in torque and horsepower. Constructed with a durable combination of stainless steel and anodised aluminium, this exhaust system strikes the ideal balance between rugged reliability and lightweight handling. Its advanced internal packing ensures extended lifespan, while the removable spark arrestor further enhances versatility for off-road use. Features Notice: Closed Course Use Only Significant improvements in power and torque Robust stainless steel and anodised aluminium construction Advanced packing material for increased durability Champagne-coloured anodised can for a premium look Removable spark arrestor included for adaptable legality Optional 96dB quiet insert available (sold separately) Specifications Item ID: 041276 Type: Slip-On Configuration: Single Construction: Aluminium Finish: Champagne Anodised Midpipe: Stainless Steel Endcap: Stainless Steel Spark Arrestor: Screen insert (included) Carb Warning: No Quiet Insert: Sold separately Weight: 5.2 lbs Vehicle Fitment Honda CRF450R (2005–2008) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2005-2008

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Engineered for riders who demand race-inspired performance without the premium price tag, the FMF Racing Powercore 4 041275 delivers a substantial boost in horsepower and torque along with top-tier durability. This slip-on exhaust features robust stainless steel and aluminium construction, an anodised champagne finish, and advanced packing material for extended service intervals. The included removable spark arrestor ensures versatility for various off-road conditions, all while maintaining a lightweight profile. Features Notice: Closed Course Use Only Race-inspired performance increases horsepower and torque output Rugged construction using stainless steel and aluminium Long-lasting, advanced packing material for prolonged service life Champagne anodised aluminium can for sleek appearance and corrosion resistance Removable screen-type spark arrestor included for trail versatility Optional 96 dB quiet insert available (sold separately) Weighs only 5.2 lbs for uncompromising weight savings Specifications Type: Slip-On Configuration: Single Construction: Aluminium Finish: Champagne Anodised Midpipe: Stainless Steel Endcap: Stainless Steel Spark Arrestor: Screen Insert (included) Quiet Insert: Sold separately Weight: 5.2 lbs Carb Warning: No Vehicle Fitment Honda CRF450R (2004) Cross-Reference OEM Numbers Item ID: 041275 Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2004

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Honda CRF 450 R 2011-2012 Part No. 06-096.FMF.Q4T (radhouse.co.uk) FMF 041456 - FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. - The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. -With the Q4 you don't need to hear the power, just feel the power! - Developed over years of championship off-road racing - Max Sound output 96dB; most models below 93dB - Constructed from aircraft grade aluminum and high strength stainless steel Use with stock or FMF header Removable spark arrestor included Type: Slip-On Configuration: Single Const: Titanium Finish: Champagne Anodized Midpipe: Stainless Steel Endcap: Stainless Steel Spark Arrestor: Screen Insert (included) Quiet Insert: 94dB Insert (included) Weight: 6.1 Note: Images are representative of product type, actual Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2011-2012 HONDA CRF 450 2011-2012

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Honda CRF450R 2011-2012 Part No. 06-096.FMF.Q4H (radhouse.co.uk) FMF 041479 The FMF Q has always been in a league of its, own and our latest Q4 HEX is the most significant upgrade to date. You don't need to settle for a plugged up moto muffler hampered by an insert when you can have a compliant muffler engineered for performance. -Less sound equals more ground -Meets USFS and FIM World Enduro sound regulations -Power gains throughout the entire rpm range -Spark arrestor included-Pounds lighter than stock-Rugged design for off-road endurance -Only US manufacturer to offer dedicated quiet exhaust systems -MADE IN THE USA Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2011-2012 HONDA CRF 450 2011-2012

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TITANIUM FMF FACTORY SILENCER Compatibility: Honda CRF 450 R 2011-2012 Part No.: 06-096.FMF.F4AT FMF No.: 041447 Features: Incorporates the latest in Resonance Chamber Technology. Patented core shape lowers sound level while maintaining maximum power output. Patented canister shape increases internal volume for more sound absorbing material. Patented chamber design enhances and refines exhaust pressure. Factory Forward Engineering centralizes mass and reduces susceptibility to crash damage. Tuned exhaust with optimized core specifications for each application. Innovative rear endcap facilitates simple installation of tuning tip inserts or spark arrestor. Specifications: Configuration: Single Construction: Titanium Finish: Anodized Blue Midpipe: Titanium Endcap: Titanium Spark Arrestor: Screen Insert (included) Quiet Insert: 94dB Insert (included) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2011-2012 HONDA CRF 450 2011-2012

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Boyesen Factory Clutch Cover Replacement Gasket CCG-06 - Replacement Clutch cover gasket - Seals perfectly to keep out dirt and moisture - Includes 1 asbestos-free, nitrile bound gasket. - Can reduce engine temperatures by as much as ten degrees. 2002-2008 Honda CRF450R Part No. 05-9152 (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2002-2008

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Boyesen Factory Outer Clutch Cover Replacement Gasket CCG- 06A - Replacement Clutch cover gasket - Seals perfectly to keep out dirt and moisture - Includes 1 asbestos-free, nitrile bound gasket. - Can reduce engine temperatures by as much as ten degrees. 2009-2016 Honda CRF450R Part No. 05-9135 (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2009-2016

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Boyesen Clutch Cover Magnesium CC-06CM Set your ride apart from the rest with the ultimate look in race performance Lightweight factory clutch covers provide years of outstanding protection; guaranteed not to warp Individually surfaced for a perfect, leak-free fit Super-tough, powder-coated finish resists weathering and wear and tear Asbestos-free gasket is bound with nitrile for tight, leak-free seal OEM paper gaskets can be reused, or use the supplied O-ring Part No. 05-848.MG.BOY (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2018 HONDA CRF RX 450 2017-2019 HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2019 HONDA CRF R 450 2017-2020 HONDA CRF X 450 2019-2020 HONDA CRF R 450 2017-2021

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Boyesen Clutch Cover Black CC-06CB Set your ride apart from the rest with the ultimate look in race performance Lightweight factory clutch covers provide years of outstanding protection; guaranteed not to warp Individually surfaced for a perfect, leak-free fit Super-tough, powder-coated finish resists weathering and wear and tear Asbestos-free gasket is bound with nitrile for tight, leak-free seal OEM paper gaskets can be reused, or use the supplied O-ring Part No. 05-848.BK.BOY (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2018 HONDA CRF RX 450 2017-2019 HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2019 HONDA CRF R 450 2017-2020 HONDA CRF X 450 2019-2020 HONDA CRF R 450 2017-2021

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Features   Deeper profile for increased oil capacity. Reduced oil temperature. High Grade 6061-T6 Aluminium. CNC Machined. Ultimate durability and strength. Lightweight. Hard wearing Anodized  surface treatment. Lasting stylish look. HONDA CRF 450L 2019 - 2023 CRF 450R 2017 - 2024 CRF 450RX 2017 - 2024 CRF 450X 2019 - 2023 FACTORY IMAGE RACING Clutch Covers are manufactured to increase oil capacity and circulation improving clutch performance and longevity. The deeper profile increases oil capacity by up to 100cc helps reduce oil temperature in long races especially in extreme muddy/sandy conditions where clutch abuse is most common. Our Clutch Covers are CNC machined from a solid billet of 6061-T6 aluminium which allows thin light weight sections to be machined whilst still increasing strength and durability over standard covers. This helps to resist damage from stones/rocks/footrests and brake pedals which can hole a standard cover almost guaranteeing a DNF. Theu also feature an extra tough Black Anodized  surface treatment which drastically increases the wear resistance from boots and grit to give a lasting stylish look. Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF RX 450 2017-2018 HONDA CRF RX 450 2017-2019 HONDA CRF RX 450 2017-2020 HONDA CRF R 450 2017-2019 HONDA CRF R 450 2017-2020 HONDA CRF X 450 2019-2020 HONDA CRF R 450 2017-2021

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Boyesen Silver Vein Clutch Cover - CC-06AB High-tech clutch covers are made from durable, lightweight aluminum Built to precise tolerance to prevent warping Powder-coated finish Part No. 05-827.S/BK.BOY (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2009-2016 HONDA CRF R 450 2010-2016

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Boyesen Magnesium Clutch Cover - CC-06AM High-tech clutch covers are made from durable, lightweight aluminum Built to precise tolerance to prevent warping Powder-coated finish Part No. 05-827.MG.BOY (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2009-2016 HONDA CRF R 450 2010-2016

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Boyesen Black Clutch Cover - CC-06AB High-tech clutch covers are made from durable, lightweight aluminum Built to precise tolerance to prevent warping Powder-coated finish Part No. 05-827.BK.BOY (radhouse.co.uk) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2009-2016 HONDA CRF R 450 2010-2016

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Features   Deeper profile for increased oil capacity. Reduced oil temperature. High Grade 6061-T6 Aluminium. CNC Machined. Ultimate durability and strength. Lightweight. Hard wearing Anodized  surface treatment. Lasting stylish look. HONDA CRF 450R 2010 - 2016 FACTORY IMAGE RACING Clutch Covers are manufactured to increase oil capacity and circulation improving clutch performance and longevity. The deeper profile increases oil capacity by up to 100cc helps reduce oil temperature in long races especially in extreme muddy/sandy conditions where clutch abuse is most common. Our Clutch Covers are CNC machined from a solid billet of 6061-T6 aluminium which allows thin light weight sections to be machined whilst still increasing strength and durability over standard covers. This helps to resist damage from stones/rocks/footrests and brake pedals which can hole a standard cover almost guaranteeing a DNF. Theu also feature an extra tough Black Anodized  surface treatment which drastically increases the wear resistance from boots and grit to give a lasting stylish look. Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years HONDA CRF R 450 2009-2016 HONDA CRF R 450 2010-2016

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