2017-2019 Duramax L5P T87A Transmission Tuning Package Duramax L5P Hard Parts these pushrods are an essential

these pushrods are an essential upgrade

This listing has all 3 components needed to eliminate the complete 9th injector assembly

we offer the E41 Upgrade Cable for rent:

Full Package: Includes Valve Cover to Catch Can Lines

2017-2019 Duramax L5P T87A Transmission Tuning Package Duramax L5P Hard Parts these pushrods are an essentialWhats 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