Solders Performance Transmission Tune Only - Chevy/GMC Duramax LWN 2.8 Tune Only - 2016-2022

Solders Performance Transmission Tune optimizes shift quality, response, and durability for 2016-2022 Chevy and GMC Duramax LWN 2.8L trucks. This tune file is designed for Colorado and Canyon models and requires a compatible EFI tuning device to flash.

Important: This is a tune file only—device purchase is separate. If your EFI device has previously flashed another truck, a VIN License is required. A stock ECU read is mandatory before tuning. Verify device compatibility before purchase to ensure proper calibration and performance.

INSTRUCTIONS ON HOW TO RETRIEVE A TCM READ