HP Tuners 2017-2023 L5P Tune Files RTD4 & MPVI3

Unleash your 2017–2023 L5P Duramax using HP Tuners with our RTD-4 device or your existing MPVI3. With HP Tuners’ advanced TDN mobile app, you can read, flash, and manage tunes straight from your phone—no laptop or cables needed.

Key features

• Works with Northern Tuning RTD-4 or MPVI3 (iOS/Android via the TDN app).

• Read & write tune files directly from your phone over Bluetooth (RTD-4 or MPVI3 required).

• Choose from one Single Tune or Multi-Tune Pack (includes all single HP tunes plus SOTF through cruise-control buttons).

• Switch-On-The-Fly (SOTF) control using factory cruise control buttons.

• Advanced data logging & diagnostics in the TDN app (log PIDs, view/clear DTCs).

• Instant tune delivery after you pull your vehicle’s stock read—no waiting.

• Clean, wide range of dyno & highway-tested tuning files; professional calibration workflow designed for ease of use, and fully guided instructions to help you get straight to tuning. 

Available options (below):
Single tune files: +50 HP, +80 HP, +100 HP, +120 HP, +180 HP • Hiss Idle tunes • Rumble Idle tunes

• SOTF 50–180 HP (Hiss or Rumble Idle) via cruise-control buttons 

Notes: These truck require 6 credits which can be added on here 

If your truck is a 2017-2018 model year you will still need the E41 upgrade cable here