GM E66 ECM Service (Global B)
GM E66 ECM Service (Global B) is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
Shipping expectations
Shipping expectations
Availability and processing time can vary by manufacturer. Available shipping choices and charges appear at checkout. Tracking is emailed after shipment. Oversized, special-order and supplier-shipped items can require additional processing time.
Returns and cancellations
Returns and cancellations
Please review eligibility before purchase. Installed, used, electronic, custom, special-order and clearance items may have return restrictions. Contact us promptly if you need to change or cancel an order.
What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
GM E66 ECM Service (Global B)
GM E66 ECM Service (Global B) is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
HP Tuners now offers support for the GM Global B E66 ECM, which is used in various 2021+ GM vehicles with the 3.0L Duramax LM2/LZ0 engine (listed below).
This one-time, send-in service is necessary for upgrading capabilities in VCM Suite (BETA). Before purchasing, please read this page thoroughly.
The E66 ECM can be found in the following GM Global B vehicles:
- 2022-2022.5 Chevrolet Silverado 1500 3.0L Duramax LM2
- 2022-2022.5 GMC Sierra 1500 3.0L Duramax LM2
- 2021-2023 Chevrolet Suburban 3.0L Duramax LM2
- 2021-2023 Chevrolet Tahoe 3.0L Duramax LM2
- 2021-2023 GMC Yukon 3.0L Duramax LM2
- 2021-2023 Cadillac Escalade 3.0L Duramax LM2
- 2022-2025 Chevrolet Silverado 1500 3.0L Duramax LZ0
- 2022-2025 GMC Sierra 1500 3.0L Duramax LZ0
This one-time service upgrades your original E66 ECM (Global B generation only) and is required for tuning using HP Tuners’ software. Users must physically remove their original E66 ECM from their vehicle and ship it to HP Tuners’ headquarters for servicing. Once upgraded, users have full access to calibrate, log, and scan via the OBDII port.
- No need for an IMMO Relearn, Crank Relearn, or to perform the “Replace ECM” Function in VCM Scanner on the stock ECM.
Everything you need to tune your E66 ECM vehicle with HP Tuners:
- This one-time, send-in GM E66 ECM Service (Global B) (upgrade service).
- Download the latest version of VCM Suite BETA for free.
- Once upgraded, purchase (6) Universal Credits to license your E66 ECM/vehicle.
- GM Global B vehicle support is only compatible with the MPVI3 interface.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product features
Use this section to highlight specific product features to your customers.
Product comparison grid
Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.
