Description
Your Grizzly’s exhaust valve is the critical component controlling combustion chamber sealing and heat management—wear it down, and you’re looking at lost compression, reduced power, and catastrophic engine damage. The Wiseco VES029 replaces that worn or damaged valve with precision-engineered durability, using advanced surface treatments to handle extreme heat cycles without degradation. Whether you’re pushing your quad hard on the trail or in competition, this valve ensures reliable performance season after season.
- CVD/CNI surface treatment
- Minimizes friction loss
- Extreme heat resistant
- Precision-engineered fit
- Increased compression retention
- Long-term reliability
- Yamaha YFM660F compatible
- 2002–2008 model years
- MPN: VES029
