High Boost / High RPM

NS FullBoost Titanium Valve Retainers are designed specifically for Yamaha 1.8L and 1.9L engines for extreme performance applications where reliability at high RPM and boost is critical.

Manufactured from high-grade titanium, these retainers reduce valvetrain mass, improve valve control, and help prevent valve float under aggressive riding conditions.

Perfect for boosted and high-RPM performance builds.

Features:

• CNC-machined titanium construction
• Ultra-lightweight design
• Improved valvetrain stability at high RPM
• Ideal for high boost & racing applications
• Precision fit and finish
• Laser-etched NS FullBoost branding
• Complete set  included (16 retainers)

⚠️For off-road / racing use only. Professional installation recommended.