Honda TRX 400EX XR400 Kibblewhite Valve Spring Kit Bronze Valve Guides RED Seals RZR Pro XP 5:1 piston is specifically designed

5:1 piston is specifically designed for pump gas

Hotcams Stage 1 camshafts

030" MLS cylinder head gasket

Kibblewhite upgraded valve spring kit

Honda TRX 400EX XR400 Kibblewhite Valve Spring Kit Bronze Valve Guides RED Seals RZR Pro XP 5:1 piston is specifically designedComplete Kibblewhite Titanium Valve Spring Kit with Bronze Guides and RED Viton Seals for Honda TRX400EX, 400X, and XR400. USA made performance upgrade for durability and reliability. Honda TRX400EX 400X XR400 Kibblewhite Titanium Valve Spring Kit + Guides & RED Viton Seals Premium Kibblewhite Top End Upgrade Package Revitalize your engine with the Kibblewhite Titanium Spring Kit with Bronze Guides and RED Viton Seals, engineered for all Honda