LML Stealth 64 Turbo

This tuning package is for 2017-2019 L5P Duramax engines. It does not delete or tamper with emissions equipment and unlocks the power potential of the truck. It adds up to +150 RWHP and +270 lb/ft TQ. Various single tune options are available: Heavy Tow (+40 RWHP, +72 ft-lbs), Light Tow (+80 RWHP, +144 ft-lbs), Street (+100 RWHP, +180 ft-lbs), and Sport (+150 RWHP, +270 ft-lbs). Shift On the Fly (SOTF) options are also available, including Optimized Stock. It requires HP Tuners RTD ECM Unlock Hardware (for 2017-2018 trucks only), HP Tuners GM Credits x4 for ECM, and HP Tuners MPVI4 Tuning Hardware. Transmission (TCM) Tuning is sold separately.