Ferrea Competition Plus Valves (D-Series) Select Valves:31mm Intake and a Wiseco 3-ring Pro

and a Wiseco 3-ring Pro Endurance lightweight piston

Why are these better than other attempts at chain guides

but is built to handle the boost of your turbo or supercharger

Custom intake valve that dramatically outperforms other off-the-shelf valves and weights up to 6 grams less per valve

Ferrea Competition Plus Valves (D-Series) Select Valves:31mm Intake and a Wiseco 3-ring ProThis is Ferrea's top of the line valve for your Honda engine. This valve is suitable for all horsepower levels and especially engines that will experience extreme exhaust temperatures from forced induction. Note: These valves are for D16Z6, Y5, Y7, Y8 1992 2000. All D Series valves are made to order due to low demand. Please allow 2 weeks for shipment