Black Friday/Cyber Monday sales begin at 11:59PM On 11-24 To 11-28 at 11:59PM. Coupon Codes Are BF1, BF2, and BF3. All Three Codes Can Be Used In One Checkout. Happy Thanksgiving!!!!

Welcome to WPI

We are your one stop shop for the finest quality automotive performance parts, service, custom metal fabrication, and machining. 

Cylinder Head Portwork

Custom Piston machining

Valve pocket work, compression height adjustments, and oil squirter relocation

Looking for 1800hp?

We can help with that

Custom Stainless Headers?

You've come to the right place