FITS: L5P & L5D Duramax
please note: An automated email will be sent out immediately after purchase, all tuning requests / vehicle details / info is collected via email
WHAT’S INCLUDED
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MPVI4 or EZLYNK 3.0
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2017–2018 L5P → HP Tuners MPVI recommended
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2019+ L5P/L5D → EZLYNK strongly recommended
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E41 HP Tuners Unlock Cable
(Not required if optioning EZLYNK — EZLYNK performs the unlock automatically) ONLY NEEDED FOR 17-18L5P USING HP TUNERS -
3.5” L5P Downpipe (HEAT WRAP INCLUDED) 409 Stainless
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4” Race Pipe or 4"/5” Full Exhaust System 409 Stainless
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0–220 HP Custom Engine Files (SOTF or Single Tune)
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EGR SOLUTION
- COOLANT REROUTE
- GASKET KIT
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CAN Bus Plugs
IF YOU HAVE YOUR OWN DEVICE AT HOME YOU WILL NEED TO MAKE SURE ITS EITHER A MPVI 2/3/4 or AUTO AGENT EZLYNK 3.0 OR 2.0
⭐ FREE RETUNES + LIFETIME SUPPORT
Included with this package — no extra charge.
IMPORTANT INFO
Transmission Tuning Sold Separately
NO ECM Swap Required
Flash everything DIY at home with either MPVI or EZLYNK.
HP Tuners (MPVI3 / MPVI4) Requirements
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Requires an E41 Unlock Cable if your ECM is not already unlocked 17-18 ONLY
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Requires 8 Universal Credits to flash your ECM
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Credits must be purchased directly through HP Tuners after connecting to your vehicle
EZLYNK 3.0 Requirements
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NO E41 unlock cable needed
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EZLYNK handles unlocking + flashing automatically
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Easiest, fastest method for 2019+ trucks
TRANSMISSION TUNING (SOLD SEPARATELY)
T87A Transmission Control Modules (2017–2019)
No need to send in your TCM. Both platforms can unlock it remotely:
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HP Tuners:
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Can unlock the 2017–2019 T87A TCM using their latest beta version
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Credits required (purchased through HP Tuners)
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EZLYNK:
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Can also unlock T87A TCM remotely
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No credits required
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T93 Transmission Control Modules (2020–2023)
These can be unlocked with hp tuners and Ezlynk. No need to send in TCM for unlock service anymore!
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EZLYNK 3.0 will do the unlock and tuning ( no credits required)
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HP Tuners (MPVI3/MPVI4) will do the unlock and tuning ( credits required )