The factory transmission has a 87% failure rate if you increase the power. The L10 valvebody is the 100% fix. Its designed for supercharger, turbo and boltons. If you have high hp you will need bulletproof transmission .The valvebody must be sent in. The upgrade takes 1 day. Please pack valvebody in 2 plastic bags (it leaks) And package very carefully its very fragile. Insure for 1200.00
