17-21 GM Duramax L5P HP Tuners New GM Unlocked T87A TCM TCM Type:Serv# 24279973 realtime measurement allows you to

realtime measurement allows you to know when to downshift or when to take your foot out of it

Kit includes: New Nodular Sprung hub Dual Disc Flywheel

the CP3 can be starved for fuel when under high demand situations

Level 3: 75 HP - 150 Lb-ft TQ

oversized press-in valve seats

17-21 GM Duramax L5P HP Tuners New GM Unlocked T87A TCM TCM Type:Serv# 24279973 realtime measurement allows you to*Please check with us to make sure this is in stock, due to high demand they come and go in stock often* You can now purchase New GM T87A TCMs for your 2017+ GM vehicle equipped with the 10 Speed and 8 Speed transmissions directly from HP Tuners that are already unlocked and ready for tuning. New GM Unlocked T87A TCMs You can now purchase New GM T87A TCMs for your 2017+ GM vehicle equipped with the 10 Speed and 8 Speed transmissions directly from HP