2001-2004.5 Chevrolet Silverado/GMC Sierra 2500/3500 - 6.6L LB7 Duramax Diesel

*Custom tunes created by 3rd party tuners and/or 3rd party custom-tuning software have no affiliation, approval or endorsement by Powerteq. Powerteq is not liable in any way for tunes created by 3rd party companies or 3rd party tuning software. The Powerteq EAS SOTF accessory is designed to replace a mechanical switch to enable changing power levels with the touch of a button on the Insight monitor.