21001, 4044-1E, 4023-1IN, C3068,5TA-11311-12-00, 5TG-11631-11-00, 5TG-11631-12-00, 5TG-11603-00-00, 5TA-12170-00-00, 5TA-12170-10-00, 1PD-12180-00-00, 5TG-12180-00-00, 5TG-12180-10-00, 94591-57118-00, 21001, 13029M09800, C3068, 71014-5, 23001-G01, H1683027S, 5TJ-11631-00-00, MX-09151-1, 202421811570, 23001-K01, A-YFZ-98-CG, P400485100047, 4906M09800, 247952, M1009, 22208

‘S UltimateYamaha YFZ450 Stage Three 3Hot Cams98mmBig Bore Kit Stage 3 Hot Cams Camshafts, Wiseco Piston, Cometic Gaskets, & Titanium Studs

Rev up your Yamaha YFZ450 to unparalleled power with the ‘s Ultimate 98mm Stage 3 Big Bore Top End Rebuild Kit the ultimate performance upgrade for carbureted YFZ450 models (20042009, 20122013). Designed for serious riders seeking next-level speed, torque, and durability, this premium kit turns your quad into a track-and-trail-dominating machine.

Whats Included:

• 98mm Nikasil Cylinder: Built for reliability and heat resistance, backed by a solid 1-year warranty.
• Custom WisecoForged Piston Kit (12.75:1): High-compression design for blistering performanceDesigned to work with Pump or Race Gas!.
• Stage 3 Hot Cams Camshafts (Intake & Exhaust): Maximize airflow and boost top-end power for peak RPM domination.
• Titanium Maxlock Head Studs: The lightest, strongest studs in the market, offering lifetime durability and performance.
• Cometic Top End Gasket Kit & Seal Kit: Includes a Cometic MLS Big Bore Head Gasket and Viton Valve Stem Seals to handle the extreme conditions of high-powered engines.
• Heavy Duty Timing Chain: Guaranteed to keep your engine running smooth under high-pressure performance.

Built to withstand the most aggressive riding conditions, this complete top-end rebuild kit delivers precision engineering, unrivaled durability, and unbeatable value. Whether you’re tearing through dunes, dominating the track, or conquering trails, this kit will raise your YFZ450s performance to elite levels.

Why ‘s 98mm Big Bore Kit?

• Unleash Maximum Performance: Achieve jaw-dropping horsepower and torque gains.
• Built Tough: High-quality materials like forged pistons, titanium studs, and nitrite-coated rings ensure lasting reliability.
• Race-Ready: Custom-crafted to handle the demands of competitive and high-speed riding.
• Best-In-Class Warranty: Get a 1-year warranty on the cylinder and a lifetime warranty on the head studs for unmatched peace of mind.

Dont Settle for Stock Upgrade Today!

Take control of your ride and leave the competition in your dust. ‘s Ultimate Stage Three 98mm Big Bore Kit is the ultimate solution for Yamaha YFZ450 enthusiasts who crave extreme power and reliability.

Step up to the promise: The Best Parts. The Best Performance. The Best Price.

BRAPPPPPPPPPP!

1-year limited warranty from the manufacturer for material or workmanship defects.*
Due to the nature of high performance and racing applications, LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.
This product is exempt from the emission standards and related requirements of 40 C.F.R. 1051 as provided by 40 C.F.R. 1051.620, and California law [e.g., vehicle code 27156 and 38391]. This product is sold only for use in connection with EPA -certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public. This product is sold only in connection with machines that do not fall under state and/or federal noise or emission standards/regulations. Purchasers who/that purchase this product represent and warrant that the product is purchased only in connection with EPA -certified, emission-regulations-exempt and noise-regulations-exempt competition/racing vehicles as interpreted under applicable state and/or federal law.

21001, 4044-1E, 4023-1IN, C3068,5TA-11311-12-00, 5TG-11631-11-00, 5TG-11631-12-00, 5TG-11603-00-00, 5TA-12170-00-00, 5TA-12170-10-00, 1PD-12180-00-00, 5TG-12180-00-00, 5TG-12180-10-00, 94591-57118-00, 21001, 13029M09800, C3068, 71014-5, 23001-G01, H1683027S, 5TJ-11631-00-00, MX-09151-1, 202421811570, 23001-K01, A-YFZ-98-CG, P400485100047, 4906M09800, 247952, M1009, 22208