HP Tuners MPVI4 — All-In-One ECU Tuning & OBDII Scan Tool Interface

The HP Tuners MPVI4 is the next-generation, all-in-one interface for scanning, diagnosing, data logging, and custom tuning your vehicle. Whether you're dialing in a diesel workhorse, a daily driver, a late-model muscle car, or powersports, the MPVI4 connects to your OBDII port and unlocks the full power of HP Tuners' VCM Suite — the industry standard in DIY and pro-level ECU tuning.

If you've been weighing MPVI3 vs MPVI4, the MPVI4 is the clear upgrade: a faster dual-core processor, Wi-Fi connectivity, expanded onboard memory for standalone data logging, and an improved OBDII connector for rock-solid connections.

Why the MPVI4 Belongs in Your Toolbox

• One device, three jobs — scan, diagnose, and tune. The MPVI4 doubles as a powerful OBD2 scan tool and a full ECU tuner.
• Wireless freedom — built-in Bluetooth 5.2 and Wi-Fi (802.11 a/b/g/n) for faster data transfer and cable-free logging.
• High-speed standalone data logging — expanded bandwidth and memory capture more channels at higher resolution, even disconnected from your laptop.
• Massive vehicle coverage — compatible with thousands of years, makes, and models, from diesel trucks to gas muscle and powersports.
• Stronger OBDII fitment — a redesigned tapered connector grips the port tighter for a more reliable link.
• PRO Feature Set included — works with PROLINK+ and ships ready for advanced tuning workflows.

Technical Specs

• Dual-core processor @ 1.7 GHz
• 1 GB RAM
• Bluetooth v5.2
• Wi-Fi 802.11 a/b/g/n (up to 150 Mbps)
• USB-C connectivity
• Three multicolor RGB status indicator lights

What's in the Box

• MPVI4 Interface
• USB-C cable
• Quick Start Guide

Before You Buy — Credits & Compatibility

The MPVI4 requires HP Tuners VCM Suite 5.2 or newer (free download). Like all HP Tuners interfaces, credits are used to license each vehicle (controller) you tune and are sold separately. Most modern diesel and gas platforms are supported — check the HP Tuners supported-vehicles list, or email us and we'll confirm fitment for your exact year, make, and model before you order. (Note: a small number of legacy controllers, such as the Mopar NGC1, are not supported.)

Why Buy From Tactical Diesel

We're a Canadian diesel performance shop that lives and breathes tuning. Order the genuine HP Tuners MPVI4 with confidence — fast shipping across Canada and responsive, email-based support from a team that actually runs this gear. Questions about credits, compatibility, or getting started? Reach out and we'll point you in the right direction.