17-19 Chevy L5P TCM Tuning + 4 Credits
Free US shipping No tariffs or fees Real tech support

The Diesel Techs

17-19 Chevy L5P TCM Tuning + 4 Credits

$599.99

Not sure it fits?

Text a tech at +1 (888) 789-5551 — we check your VIN before you buy.

Description

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.

The Diesel Techs 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.

Shipping

Free US shipping — no tariffs, no import fees.

Returns

Unused parts in original packaging may be returned within 30 days of delivery. Tuners married to a VIN need a factory unlock first — text a tech.

Goes with your build

Official H&S Mini Maxx Tranny (TCM) Tuning

Official H&S Mini Maxx Tranny (TCM) Tuning

MINI MAXX

$129.99
View product
20-23 Chevy L5P TCM Tuning+4 Credits

20-23 Chevy L5P TCM Tuning+4 Credits

The Diesel Techs

$549.99
View product

Questions, answered

Can't find it here? Call or text +1 (888) 789-5551, 9–5 MST weekdays.

What parts do you offer?
We offer a wide range of high-quality diesel parts for various trucks, including full exhaust systems, tuners & tunes , and complete egr & def delete kits.
How do I place an order?
To place an order, simply add the desired items to your cart and proceed to checkout. Follow the prompts to enter your shipping and payment information.
Do you offer international shipping?
Yes, we offer international shipping world wide. Additional fees may apply, and delivery times may vary depending on the destination.
What is your return policy?
Due to the specialized nature of our products, we generally do not accept returns. Most items are VIN-specific or custom-built to order. Before returning any items, please contact us for specific shipping instructions.
How can I track my order?
Once your order is shipped, you will receive a tracking number via email. You can use this tracking number to monitor the progress of your delivery.