BD Diesel Throttle Sensitivity Booster - Chevy / GMC hands The VVB rotary switch offers

The VVB rotary switch offers three different modes included automatic moderate and aggressive downshifting programs for the Allison transmission to give better weight control

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BD Diesel Throttle Sensitivity Booster - Chevy / GMC hands The VVB rotary switch offersSay goodbye to that dead, laggy throttle pedal felling and enjoy quicker engine response and acceleration with the BD Power TS Booster. The TS Booster amplifies the signal between the throttle pedal and ECM to give a quicker reaction time and forces your performance curve to occur sooner, achieving quicker engine response and a "fly back in your seat" feeling. Factory connections mean a painless install giving you six acceleration levels and a