Tune your GM L5P Truck with HP Tuners
The L5P ECM Service from HP Tuners gives you the power to tune your 2017+ Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax.
There are two available options to calibrate, log, and scan via your vehicle’s OBDII port—Upgrade or Purchase. With either choice, you receive an E41 ECM that is fully compatible and ready to tune with the MPVI2 or newer device and VCM Suite (BETA).
Upgrade Service
This one-time, send-in upgrade option will upgrade your original or spare E41 ECM to enable tuning in VCM Suite. Simply send us your ECM and we’ll send it back to you fully upgraded for tuning in the latest VCM Suite (BETA). This means you must remove your ECM from your vehicle and ship it to HP Tuners (see removal video).
Advantages of the L5P ECM Upgrade Service:
- No need for an IMMO relearn*
- No crank relearn*
- No need to perform the Replace ECM Function in VCM Scanner*
Please allow 1-3 business days for service (not including shipping time). *As long as all of these items were completed before sending in your ECM.
Important Note: This is a send-in service that requires you to send HP Tuners your original/spare PCM for servicing.
ECMs with broken “LOCKING” tabs or connectors WILL NOT be accepted for upgrades.
VIN is not required. No programming will be performed as part of the L5P Upgrade Service and the ECM will be returned to you with the same programming as it was received. If the ECM that is being sent in for upgrade will be going into a different truck than it came out of, please purchase the L5P ECM Exchange Service.
Shipping address for send-in E41 ECM service: HP Tuners (ATT: L5P ECM Service), 700 Eastwood Ln, Buffalo Grove, IL 60089
New ECM Purchase
Short on time and need an upgraded E41 ECM ASAP? This option allows you to purchase a brand-new, fully upgraded E41 ECM instead of sending in your original controller for servicing. This is ideal for enthusiasts who want their vehicles up and running as quickly as possible.
Once you install the brand-new, already upgraded E41 ECM, you must follow these installation steps.
Everything you need to tune your GM E41 ECM (L5P) vehicle with HP Tuners:
- Select one of the two options available above: Upgrade or Purchase.
- Download the latest version of VCM Suite BETA for free here.
- Once upgraded, purchase (8) Universal Credits to license your upgraded ECM.
- Make sure you have an MPVI2, MPVI2+, or MPVI3 interface.
- Purchase a new MPVI3 here.
- Upgrade your old device for MPVI3 here.
Note: Universal Credits for licensing are not included in the cost of any upgrade service or purchase. Credits must be purchased separately.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
