In order to provide unparalleled durability and power, Skunk2 Ultra Series valves are heat-treated by utilizing a proprietary process. The Ultra Series valves are constructed from HNV3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings. As a result, the valves are high resistant against oxidation and corrosion. This is very useful for engines that produce very high temperatures.

Established in 1994, Skunk2 Racing has been all about providing track and race enthusiasts with only the best parts and systems for their high-performance customs. Built by a team of engineers and innovators who were originally racers or avid fans of the sport, trust the Skunk2 Racing family to know what their clients want and need.

Armed with the passion to provide, their research and development process is streamlined thanks to the systematic usage of in-house simulations and controlled testing using state of the art equipment. Since then, Skunk2 Racing has been able to output innovative products to the waiting public, like the first cast aluminum high-performance intake manifold, composite fuel rails, and valve train components, making such premium components accessible to those who want to see improvements in their vehicle's performance.

With their burning passion to push the development envelope in automotive performance for the masses, it has only been success upon success for Skunk2 Racing and their patrons.