Yamaha WR 450 F Exhaust Camshaft - Hot Cams - Stage 1 - `16-`18. A purpose-built Stage 1 exhaust camshaft for 2016–2018 WR450F models, offering a straightforward upgrade for riders looking to improve engine breathing and on-track performance without major supporting modifications.

This Hot Cams Stage 1 unit is dyno-proven in the USA and developed using modern valvetrain software to refine lobe profiles for reliable, predictable gains. CNC-machined from 8620 billet, case-hardened steel, the camshaft provides precise fit and durable wear characteristics. Designed for easy installation and offered at an economical price point, the Stage 1 profile is intended to yield measured power gains (typical 5–10% range) while remaining compatible with stock valvetrain components. No core exchange is required.

Features

• Dyno-proven design developed in the USA
• Engineered with valvetrain software for optimized lobe profiles
• CNC-machined from 8620 billet, case-hardened steel
• Typical 5–10% power gain (stage-dependent)
• Direct fit for 2016–2018 Yamaha WR450F
• No core exchange required; straightforward installation

If you have questions or want advice on fitment, performance expectations, or installation, call us directly — we’re happy to help. We offer installation and customization services at both of our locations in Austin, Texas and the Los Angeles, California area. Call: 512-982-9393 (TX) or 562-981-6800 (CA). If you’re considering purchasing multiple items, contact us for shipping discounts. We perform installations on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov