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Exhaust Back Pressure
Easy to install in 5 minutes or less
Low Profile Design
6l Duramax LB7 Duramax Engines
No tools required
Alison Cut Back Valve EFI Live Exhaust Back PressureThis 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.
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