Pay in 4 interest-free payments of $81.25 Learn more
Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
Precision CNC-machined from premium tool steel
Quick Install Tip: No special tools required — swap it in in minutes and clear any stored codes with your scan tool
✔ Multi-Vehicle Capability – Tune multiple vehicles using one device (with separate support packs)
‼️IMPORTANT for Our Rental Program‼️
2020-2023 Duramax L5P Transmission Tuning Package Powerstroke Hard Parts Precision CNC-machined from premium toolThe 2020 2023 L5P Duramax is known for its smooth shifts and great performance while towing. However, it still leaves a bit to be desired when it comes to shifiting in high performance senarios. It can fall behind due to its drawn out shifts and its weaker clutch holding strength. Changing the factory calibration is especially important when you modify your truck and or install ECM Tuning. Custom TCM Tuning gives you quicker shift changes, smoother
