Welcome to Overboost Engineering!  We specialize in Mitsubishi, DSM, EVO, Subaru, SRT-4, Nissan, Honda, Toyota, VW, and Suzuki Motorcycle Turbo Kits.  Please bear with us as we're are currently updating our site continuously. We will be constantly adding more products - if you don't see something here PLEASE EMAIL US we will get you what you need as fast as possible. The site is 100% functional and you can purchase parts via paypal & credit cards right now! Please email if you have any questions we will be able to assist you as soon as possible.




12/8/2008 NEW!!! BUSCHUR RACING ENTIRE LINE OF PRODUCTS FOR DSMs & EVOs VIII-X!!! sales@overboostengineering.net for more information! New Product Added soon!


We carry the entire BORG WARNER LINE and BULLSEYE POWER!! Contact us for details! We'll get you the BEST DEAL on these turbos HANDS DOWN! sales@overboostengineering.net


WE BUILD RACE ENGINES - EMAIL FOR AVAILABLE OPTIONS, QUOTES,  AND PRICING! 

2.4L 4G64/G4CS STAGE II LONG BLOCK.  600+WHP Capable
Manley H beams Rods
Wiseco Pistons 8.8:1
4G64 Crank
Cometic Head Gasket
4G63 Stage V Head
Brian Crower 280 Cams
Manley Springs and Ti Retainers
Si Stainless Nitride Valves

These don't ship overnight fellas - they're UPS Freight for typically $300. They take anywhere from 4 to 8 weeks to build. Please contact for more information! sales@overboostengineering.net