Pay in 4 interest-free payments of $125.00 Learn more
Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
crisper shifts under load and at WOT✔ Reduced gear hunting and improved towing manners✔ Unlocks true torque potential of your L5P
Controller is upgraded for tuning compatibility
👉 Order the DIESELR Signature EGR Upgrade Kit (2015
Fits most 20-24 F250/F350 pickups with automatic transmissions (Does not fit Regular Cab)
HP Tuners GM E42 ECM Upgrade Service (2024-2025 GM Duramax L5P) 20+_POWERSTROKE_6.7 crisper shifts under load andGet your 2023+ Chevrolet Silverado and GMC Sierra 2500 3500 6. 6L Duramax ready for tuning! Optimize your GM L5P Truck Performance, Upgrade the potential of your 2023+ Chevrolet Silverado and GMC Sierra 2500 3500 6. 6L Duramax with the L5P ECM Service by HP Tuners. This service grants you the capability to fine tune your vehicles performance. Buy this send in upgrade service to modify your existing E42 ECM for integration with the latest version of
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