Single Tune 2007.5-2010 LMM Duramax for EFILive 2017-2019 CSP5 Switch optional but required

CSP5 Switch optional but required for switching tunes

Levels 1–5 with up to 180 HP gain

You won't find a better fit

sport economy driving and stock tunes for your 2001

Our 4 Tune Pack - Best in Class

Single Tune 2007.5-2010 LMM Duramax for EFILive 2017-2019 CSP5 Switch optional but requiredYour choice of the 5 power levels, including light tow, heavy tow, race, sport economy and optimized stock for your 2007,2008,2009, or 2010 Chevy Silverado or GMC Sierra. Choose your power level HEAVY TOW For towing from 8,000lbs up to Gross Vehicle Weight Rating Wider torque curve assists heavy loads + 60 RWHP, + 120 ft lbs torque Exhaust temperatures drop up to 100F under full load LIGHT TOW For those towing below 8,000lbs Perfect balance of sport