Alison Cut Back Valve EFI Live efficiency and functionality all in

efficiency and functionality all in one easy-to-use package

Easy to install in 5 minutes or less

The WeatherTech® FloorLiner™ accurately and completely lines the interior carpet giving "absolute interior protection™"

Exhaust Back Pressure

Engine Fuel Pressure (pressure of the fuel lift pump)

Alison Cut Back Valve EFI Live efficiency and functionality all inThis valve is the converter flow valve. This valve controls fluid to the converter clutch and cuts back pressure from 250 psi ( or so ) to 145 psi when the converter clutch applies. This valve will bring that pressure to a more acceptable 170 190 psi, and much more depending on application. This valve is very important in high horsepower applications to hold the most extreme conditions. 01 07 Duramax, include a note with year of your truck at checkout.