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

• MPVI4 or EZLYNK 3.0

  • 2017–2018 L5P → HP Tuners MPVI recommended

  • 2019+ L5P/L5D → EZLYNK strongly recommended

• 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

• 4” Race Pipe or 4"/5” Full Exhaust System 409 Stainless

• 0–220 HP Custom Engine Files (SOTF or Single Tune)

• EGR SOLUTION

• COOLANT REROUTE
• GASKET KIT

• 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

• Requires an E41 Unlock Cable if your ECM is not already unlocked 17-18 ONLY

• Requires 8 Universal Credits to flash your ECM

• Credits must be purchased directly through HP Tuners after connecting to your vehicle

EZLYNK 3.0 Requirements

• NO E41 unlock cable needed

• EZLYNK handles unlocking + flashing automatically

• 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:

• HP Tuners:

  • Can unlock the 2017–2019 T87A TCM using their latest beta version

  • Credits required (purchased through HP Tuners)

• EZLYNK:

  • Can also unlock T87A TCM remotely

  • No credits required

T93 Transmission Control Modules (2020–2023)

These cannot be unlocked remotely.

You must either:
1️⃣ Send in your TCM to be unlocked, OR
2️⃣ Purchase an unlocked T93 TCM and install it

Once the unlocked T93 is installed successfully in your vehicle, it can be tuned with:

• EZLYNK 3.0, or

• HP Tuners (MPVI3/MPVI4)