2020-2026 Corvette HP Tuners T46 TCM Global B Unlock Service (TCM-GB-T46-U)

SKU: TCM-GB-T46-U
This is a one-time, send-in upgrade only service that requires users to remove the PCM and send it to HP Tuners for servicing.
Regular price $739.99

Product Details

  • Type ECM Upgrade
  • Vendor HP Tuners
  • SKU TCM-GB-T46-U

2020-2026 Corvette HP Tuners T46 TCM Global B Unlock Service (TCM-GB-T46-U)

Ready to tune your Corvette C8’s dual-clutch transmission with HP Tuners? We are pleased to offer the GM T46 TCM Upgrade Service for supported 2020-2026 Chevrolet Corvette C8 applications equipped with the Tremec T46 transmission controller.

Shipping address for send-in services: HP Tuners (ATT: GM T46 TCM Service [Global B]), 711 Dartmouth Lane, Buffalo Grove, IL 60089

This is a send-in service which means you must first send us your original TCM. Please read this page in its entirety before purchasing.

This upgrade service enables transmission tuning support through VCM Suite and allows customers to build complete ECM and TCM calibration packages using HP Tuners hardware and software.

Once upgraded and licensed, users will have access to:

  • Transmission diagnostics and data logging
  • Calibration editing through VCM Editor
  • Logging and analysis through VCM Scanner
  • Read, edit, and write functionality for supported transmission calibrations
  • Remote tuning capability through RTD4 and TDN
  • Complete ECM and TCM tuning workflows for supported Corvette C8 applications
  1. This one-time, send-in GM T46 TCM Service (Global B) (upgrade service).
  2. Download the latest version of VCM Suite BETA for free. 
  3. An MPVI4 device. 
    1. Purchase a new MPVI4.
    2. Upgrade to MPVI4.
  4. Once upgraded, purchase (6) Universal Credits.