17-21 GM Duramax L5P HP Tuners Modified Unlocked ECM Intercooler Pipes & Y-Bridges Improved longevity in high boost

Improved longevity in high boost applications

installing within the window channel

Prevent torque converter shudder and clutch slippage on the 2005 - 2007 Dodge 5

you must order 2 kits to replace all 12 valve springs

No tuning or maintenance required

17-21 GM Duramax L5P HP Tuners Modified Unlocked ECM Intercooler Pipes & Y-Bridges Improved longevity in high boostHP Tuners exclusively presents our L5P Modified ECM Purchase & ECM Exchange Service, giving you the power to tune your 2017+ Chevrolet Silverado GMC Sierra 2500 3500 6. 6L Duramax. You now also have the option to either purchase an HP Tuners Modified ECM or send us your original ECM and we will exchange it for a HP Tuners modified one. Both options give you full access to calibrate, log and scan via the OBD2 port with your MPVI2 and VCM Suite 4. 3+!