Exhaust Brake, Variable Vane - Chevy 2007.5-2010 LMM Duramax
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.; Different modes including automatic downshifting keeping engine rpm and engine retarding force high; Integrated with the cruise control to automatically accelerate and decelerate to maintain vehicle speed; Engine warm up feature; Easily installs by plugging into existing factory ports; Switch mounted on dash
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