Order 10 pcs for 20% discount. Discount refunded after purchase.

NEVER run oem valves. Oem valves break, its not a question of if its a question of when. We have broken many over the years even with mild springs at the 5500-6500 rpm range

These valves are designed to be used with stock seats. They are stock replacement designed to be stronger. They are slightly larger and will allow for more air flow when opening up the seat id. Valves are made upon order and can take a few weeks. Always run lash caps.