Percy's High Performance

If Your Header Gaskets Can't Stand the Heat, You Need XX Carbon!

Percy's continues to add many new gasket applications for the XX Carbon line of gaskets. These include applications for the LSX gen III GM engines. Percys has also developed gaskets for the new Ford 3V Modular engines which are available in the new mustang GT and F-series pickups. Percy's didnt foget about Mopar fans! We have developed gaskets for the new hemi's in both the standard configuration as well as the SRT8 models.^{[Read More]}

What Other Aftermarket Windshield Could Withstand this Abuse?

For the last 7 years, no one else has proven the durability of their windshield like SPEEDGLASS has. In 2002, JEEP.OFF-ROAD.COM put a Percy's SPEEDGLASS windshield to the true test. It was used as an oil drip pan, sprayed with lighter fluid and set on fire, and shot with a .22 caliber rifle. They threw rocks at it and head butted it. It's hard to believe so you should probably read the article to truly believe the durability of a SPEEDGLASS windshield.^{[Read More]}

"It was good to see Percys sign on with the USAR Pro Cup Series. Last year Iwrecked a car at IRP, it bent the header flange on the engine and I could not afford to replace the headers. I found the Percys aluminum gasket at a local auto parts store and was able to reseal the headers to the engine. I ran this gasket set in the remaining races of the season and will continue to run Percy's HP Products. Thanks, Greg Van Alst Van Alst Motorsports #35 Northern Division."

Greg Van Alst

"I recently purchased your aluminum flange gaskets for my Camaro. I had blown out my paper gaskets and am happy to tell you that your product sealed nicely and I know will not bow out on me. If you have a decal of your company I would like to display it on my car. Thanks again for making a great product.”

Eric Bayne

"Simply put, the best header & collector gaskets made! Installed header gaskets on my small block Chevy after other brands failed. Problem solved. Do yourself a favor and buy these gaskets the first time and be done with it!"

Art Rowe

Reusable Header Flange Gaskets With an Ultimate Seal

Percy's Reusable Flange Gaskets are multi-layered and made of a special "DEAD SOFT" aluminum, which conforms to header flanges for an ultimate seal. Because the SEAL-4-GOOD is a solid metal gasket, it will not blow-out nor will it burn-out. The "SEAL-4-GOOD" header gaskets are now available for most popular applications.^{[Read More]}

No More Bolts Backing out with Percy's New Split Lock Fasteners!

The Split Lock Friction Lock Fastener design uses a locking set pin built into the bolt. When tightened, the set pin expands the bolt threads against the thread wall providing an unmatched lock. The Split Lock Friction Lock Fastener is the ONLY fastener that provides a locking system without using any additional wires, locking compounds, lock washers, or complicated interrupters. Applications for many vehicles with more coming daily!^{[Read More]}