Works on all Honda 400EX, 400X, and XR400R models and years

Wiseco 88mm big bore forged piston

Nitrite-coated piston rings

Chrome wrist-pin

Circlips

Cometic big bore top-end gasket kit

MLS head gasket

Runs on pump or race gas

1-year warranty on the complete kit, used and new parts*

– The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!