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Not compatible with OEM L5P in-tank pump or high pressure lift pumps designed for use with HP4 injection pumps
look no further than our 60% over fuel injectors
Get the most advanced calibrations for the 2020-2023 E41 L5P
Jetfire Technology Turbine Wheel
Introducing HP Tuners’ newest and most advanced vehicle interface
GM E42 ECM Service (L5P, Global B) single tune Not compatible with OEM L5PTune your 2024 2025 Silverado Sierra 2500 3500 with the 6. 6L L5P Duramax (E42 ECM) now using HP Tuners VCM Suite! This service is required to upgrade the E42 ECM in these diesel trucks for tuning using an MPVI3 device and VCM Suite. Note: Spare ECMs will NOT BE ACCEPTED, no exceptions. Only the original ECM from your vehicle is acceptable for this service. Shipping address for send in services: HP Tuners [ATT: GM E42 ECM Service (L5P, Global B)], 700
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