MaxxECU PRO PREMIUM Review: The Ultimate ECU for Serious Tuners

🏁 Unleash Total Control with MaxxECU PRO PREMIUM (Harnesses & LSU 4.2)

For serious tuners, racers, or high-performance street builds, the MaxxECU PRO PREMIUM (Harnesses and LSU 4.2) is the ultimate standalone engine management solution. Get everything you need to tune confidently and precisely—all in one factory-tested kit.

🚦Why Choose the PRO PREMIUM Kit?

1. Complete, Plug‑and‑Play Wiring Harnesses
This kit includes all OEM-grade flying‑lead harnesses (Connector 1, 2, 3, 4), each pre-labeled. While it's designed for cleaner installation, it does require a solid understanding of wiring and standalone ECU integration.

2. Dual-Band Bosch LSU 4.2 Wideband Capability
Includes two Bosch LSU 4.2 O2 sensors for precise dual-bank air/fuel control—essential for high-performance engines, forced induction, or flex-fuel builds.

3. Fully Loaded ECU Features
This premium system offers:

• Support for up to 12 cylinders

• 16 injector and 12 ignition outputs

• Dual E-throttle, dual knock, dual CAN bus

• Built-in 3-bar MAP sensor

• Bluetooth & USB connectivity

• MTune software compatibility

🧠 Important Note: Technical Knowledge Required

This is a professional-level engine management system. While it offers unmatched control and expandability, it’s best suited for users with:

• Intermediate to advanced wiring experience

• ECU tuning knowledge

• Access to a dyno or experienced tuner

If you're not confident in these areas, we recommend working with a professional installer or tuner like JB Tech Racing to get the most out of your MaxxECU PRO.

🕒 When Should You Use It?

This kit is ideal when:

📦 What’s Included in the Box

• MaxxECU PRO ECU unit

• Flying lead harnesses (Connectors 1–4)

• Dual Bosch LSU 4.2 O2 sensors

• MAP sensor hose kit

• GT150 & EGT connectors

• USB & Bluetooth antennas

• Waterproof ECU bracket

• Printed Quick-Start Guide + full wiring diagrams

🔧 Installation Overview

1. Connect harnesses to injectors, coils, sensors, etc.

2. Mount ECU using supplied bracket.

3. Wire in power, grounds, and CAN devices carefully.

4. Set up your tune using MTune software.

5. Log and refine your setup on a dyno or road test.

✅ Ready to Upgrade?

If you're building a race-level setup and need total engine control, the MaxxECU PRO PREMIUM is your best bet. Just make sure you—or your installer—have the technical skills to bring it to life.

👉 Order now at DRFTIndustries.com