Description
The ultimate sleeper package for the 2023-2026 Yamaha YZ450F. Utilizing a Dynamic Racing 99mm 14.9 compression ratio piston and a matching 99mm cylinder. This Punches your engine to 470cc. This all-in-one bolt-on kit is designed for racers seeking significant performance gains without the hassle of extensive modifications. No case mods needed, install with ease!
Cylinder core NOT required. If you would like to exchange a good cylinder core, we offer a $50 refund after you purchase the kit, and we receive the cylinder.
Key Features:
- Instant Power Gains: Simply install the kit with all the supplied parts and expect great power gains in just a couple hours! Expect a 4-5 horsepower gain and 6-7hp with quality race fuel and proper tune.
- Innovative Crown Design: The standout feature of this piston kit is its advanced crown design, which enhances combustion efficiency for improved power output, allowing your engine to perform at its best.
- Premium Components: This kit includes a custom designed JE piston, proprietary crown design, DLC-coated wrist pin that reduces friction, maximizing durability, and performance. The specially designed ring pack ensures a secure seal for enhanced reliability.
- Gaskets: A high-quality head and base gasket ensuring uninterrupted performance
- Cylinder: Nikasil plated cylinder provides extreme durability and performance.
Kit Includes:
- 14.9:1 High Comp Piston
- 99MM Bore Cylinder
- DLC Coated Wrist Pin
- Titanium Nitrided Ring Pack
- Head and Cylinder Gasket
For optimal performance, we highly recommend pairing this kit with our Vortex ECU and custom maps to fully unleash the capabilities of your YZ450F!
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