Pay in 4 interest-free payments of $81.25 Learn more
Ships within 48 hours · Estimated delivery Nov 6 - Nov 11
Crankcase Breather Kit
and an overall better driving experience
Cutoff Wheel (Wiz Wheel)
Tuning Configuration OptionsChoose between a single performance tune or Shift-On-The-Fly (SOTF) tuning
2017-2019 Duramax L5P T87A Transmission Tuning Package Duramax LML Hard Parts Crankcase Breather KitWhats Included Transmission Tuning Configuration Four (4) HPTuners Universal CreditsRequired for TCM unlocking and flashing. As of November 18, 2025, HP Tuners has officially released direct OBDII flashing support for the GM T87A Transmission Control Module (TCM), eliminating the need to remove, ship, or exchange of the TCM unlocking
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