Del West +1mm Oversized Titanium Outer Intake Valve – Yamaha YFZ450 / YFZ450R / YFZ450X

Increase flow and power with the Del West +1mm Oversized Titanium Outer Intake Valve, designed for race-level performance and maximum reliability. Built from aerospace-grade titanium aluminide, this valve delivers ultra-lightweight strength, heat resistance, and precise airflow control — essential for ported heads and high-RPM YFZ450 builds.

✅ What’s Included

• (1) Del West +1mm Oversized Titanium Outer Intake Valve

• CNC-machined, ready for drop-in installation

⚙️ Key Features & Benefits

• +1.00 mm Oversized Head: Improves intake flow for stronger mid-to-top-end power gains

• Titanium Aluminide Construction: Extremely durable yet lightweight for reduced valve float

• Race-Proven Reliability: Trusted in championship-winning YFZ450R and WR/YZ450F engines

• High-Temperature Stability: Maintains performance under extreme heat and load

• Direct OEM Fit: Works seamlessly as the outer intake valve in all YFZ450/R/X engines

📦 Compatibility

• Yamaha YFZ450 (2004–2014)

• Yamaha YFZ450R (2009–2014)

• Yamaha YFZ450X (2010–2011)

• Includes SE, LE, and Bill Balance Editions

🛡️ Warranty Info

Manufacturer warranty included.
Professional installation and proper valve clearance setup required to maintain warranty coverage.

💲 Price: $155.95 (Suggested Retail)
🔢 SKU: 0926-1758 / DWYFZ450R12IV03
🏷️ Brand: Del West