17-21 GM Duramax L5P HP Tuners Modified Unlocked ECM Intercooler Pipes & Y-Bridges No tuning or maintenance required

No tuning or maintenance required

Grooved axial bearings

Updated pump mounting bracket

this cam picked up 40hp at 1700rpm due to the fact that it moves so much air at lower rpms and helps the turbo spool much sooner

Faster turbo spool-up

17-21 GM Duramax L5P HP Tuners Modified Unlocked ECM Intercooler Pipes & Y-Bridges No tuning or maintenance requiredHP 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+!