The Predator Tripple Lock Torque Converter is designed exclusively for the Alpha 6.6 Durmax H1 Hummer. It will give your Hummer increased HP and Torque to the wheels faster and more reliably then stock. Designed to reduce the stall speed to 1350 RPM which means you will realize full engine power much earlier then the stock torque converter. It's almost like adding a turbo to your turbo! Great for Stock H1's to Raptorq equipped H1's