SUPERCHIPS now has tuning coverage for the 2017 GM gas trucks and SUV (4.3L, 5.3L, 6.0L, 6.2L) via their product Flashpaq # 2845 available thru Marken Performance.  Transmission tuning coverage is for the 6 speed with 8-Speed Transmission tuning coverage coming soon!  Get up to 40HP & 45 lb-ft TQ with Rev & Speed limiter options plus tire size calibration adjustment 26″ – 38″.   Superchips is also aware that often times you’re looking to improve fuel economy, you’d like to see some better towing power, and you want to eliminate downshifting.  Superchips Flashpaq # 2845 does just that as well as read/clear trouble codes, adjust your speed limiter and tuning for shift points, shift firmness, & TQ management.  

   Superchips Flashcal for truck # 2545 is not a tuner but will adjust for taller tires as well as read/clear trouble codes and adjust your speed limiter.