HP Tuners E41 ECM Upgrade Service 2017-2023 Silverado Sierra 6.6L L5P
⚠ Call for Availability
This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$649.99
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
This is HP Tuners' send-in upgrade service for the GM E41 ECM found in 2017-2023 Duramax trucks. You remove the ECM, ship it to HP Tuners, and it comes back upgraded so it can be read, written, logged, and scanned through the OBDII port with VCM Suite.
Key Features
- One-time send-in upgrade of your E41 ECM for tuning in VCM Suite
- No IMMO relearn, no crank relearn, and no "Replace ECM" function when the ECM goes back into the same vehicle it came from
- VCM Scanner, dealer diagnostics, and other diagnostic tools continue to work normally
- VCM Suite can be used to return to or update the stock calibration
Fitment
2017-2023 Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax with the E41 ECM. Tuning after the upgrade requires an MPVI2, MPVI2+, MPVI3, or MPVI4 interface running the latest VCM Suite BETA with an internet connection.
Service Notes
- The vehicle VIN is required when the service is ordered
- HP Tuners lists up to 10 business days of processing per module once it arrives, not including shipping time
- ECMs with broken locking tabs or connectors are not accepted
- Six Universal Credits are required to license the upgraded ECM and are sold separately
- No other tuning or calibration tools, including dealer reflash tools, can be used with the upgraded ECM
Product Details
- Brand: HP Tuners
- Manufacturer Part Number: ECM-00-L5P-U
- Controller: GM E41 ECM (L5P)
- Service type: send-in ECM upgrade
Shipping Height: 3.0
Shipping Length: 10.0
Shipping Width: 8.0