2017-2019 Chevy L5P TCM Tuning + 4 Credits
Tunes

2017-2019 Chevy L5P TCM Tuning + 4 Credits

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$599.99
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

2017-2019 Chevy L5P TCM Tuning + 4 Credits 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.

No TCM Swap Required!

NO TCM INCLUDED OR NEEDED NOW!

WE CAN UNLOCK & TUNE THE FACTORY TCM IN THE TRUCK!

Unlock Your Vehicle's Full Potential With TCM Tuning.

Unlimited Diesels TCM Tuning is for those looking to upgrade their TCM by adding Transmission Tuning. The TCM Tuning will dramatically increase the drivability of your Allison by modifying and adjusting your shift points, line pressure, and increasing the holding capacity.

Please ensure your VIN is entered correctly to avoid any delays in processing your order.

Quick and Easy Installation

You’ll need to license the controller through HP Tuners, and then you’re ready to start fine-tuning your vehicle's transmission to meet your exact specifications.

Why Upgrade Your TCM?

Upgrading your TCM is an essential step for anyone looking to get the most out of their GM vehicle. An upgraded TCM offers better control over your transmission, allowing for more precise tuning and improved performance. Whether you're looking for smoother shifts, better acceleration, or overall enhanced drivability, an upgraded TCM gives you the flexibility to achieve your goals.

What's Included:

  • We can now unlock the factory TCM in the truck. No Swapping Needed!
  • Ready for tuning with HP Tuners
  • Transmission Tuning Included
  • 4 Credits Included

This package includes everything you need to start tuning your T87A TCM vehicle, setting you on the path to a more responsive and powerful driving experience.

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.