BD Diesel Exhaust Brake, Variable Vane - Chevy 2006-2007 LBZ Duramax 2001020

Delivers up to 30-40psi exhaust backpressure; Electronically closes off turbocharger vanes to provide engine braking; Helps maintain speeds on descents and curves; Better control of your truck and load.; Integrated with the cruise control to automatically accelerate and decelerate to maintain vehicle speed; Easily installs by plugging into existing factory ports; Switch mounted on dash