30%OFF 2024-2026 Chevy L5P HPT ECM UNLOCK SERVICE
Tuner & Tunes

2024-2026 Chevy L5P HPT ECM UNLOCK SERVICE

Read Instructions
$1,049.99
VIN required. Enter the truck's 17-character VIN before adding this product to the cart.
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1 truck Each truck gets its own options, VIN, modifications, and add-ons.
Need help? Use Shop Parts for individual items, open the Kit Builder for a complete setup, or contact us before ordering.
Complete Kit

Build full kit

Product Info

Product Info

2024-2026 Chevy L5P HPT ECM UNLOCK SERVICE is organized to make fitment, included components, and ordering details easier to confirm.

Confirm the listed year, make, model, engine, and any truck-specific configuration before purchasing. The exact contents and fitment depend on the options selected on this product page.

This is an ECM unlock service to get the factory ECM in your 2024-2025 L5P Duramax 2500/3500 Pickup ready for tuning.

Tuning is in Beta Testing so most likely will not be released till the end of August 2025.

HP Tuners introduces full custom tuning and diagnostics for the 2024–2026 L5P Duramax platform with the GM E42 ECM Service. Compatible with Chevrolet Silverado and GMC Sierra 2500/3500 models, this service enables professionals to read, license, and write calibrations using the MPVI4 interface and VCM Suite software. Designed for expert use, it ensures comprehensive support across all L5P Duramax years, streamlining performance tuning and diagnostics for the latest 6.6L Duramax engines. Requires MPVI4, latest VCM Suite BETA, GM E42 ECM Service, and 8 Universal Credits.

What You Need To Start Tuning

  1. MPVI4 OBDII Device
  2. (8) Creditsto license (per ECM)
  3. The latest version ofVCM SuiteBETA software
  4. ECM Unlock Service.
    One-time, send-in service requiring 3-5 business days to complete (not including shipping)
The new 2024–2026 L5P trucks feature GM’s latest Global B architecture with the E42 ECM. This service gives you direct control over the newest generation of Duramax, with fast write speeds and full calibration flexibility.
Fitment and Options

Options on this page are tied to real Shopify variants. Unavailable combinations are disabled automatically, and the cart receives the exact selected variant.

Unlimited Packages, tuners, and tunes require a decoded 17-character VIN before checkout. The VIN and verified vehicle are saved separately from your modification notes.

Bundle pages can add matching support parts with the main product. Exhaust, EGR, tips, intakes, switches, and support parts are grouped so the order stays clean.

Shipping

Shipping options and delivery times are shown at checkout. Fast air shipping may be available at checkout. Some tuning, custom-order, and VIN-matched items may require extra processing time.

Returns

Electrical, tuning, special-order, and used/installed items may have special return limits. Contact support before ordering if you are unsure.

Fast air shipping Available at checkout when the order and address qualify.
1 yr limited warranty Coverage applies to tuning and software items according to the order details.
Sales assistance Use Shop Parts, the Kit Builder, VIN checks, and modification notes to get the right setup.
Safe payment Secure online payment is handled through Shopify checkout.
Unlimited Diesels

Built to help you order the right diesel setup.

1Select the exact product options that match your truck.
2For tuners, tunes, and bundles, verify the VIN and add modification notes.
3Add matching support parts below the product when they are needed.
4Review the cart, then checkout with the exact selected variants.