VQ Harness Service

Explore our range of services designed to help you move forward with confidence, wherever you're headed next.

We offer professional harness services for VQ35DE, VQ35HR, and VQ37VHR engines, including standalone conversions, custom integrations, and full reworks—built for clean installs and dependable performance.

We offer each in Universal or Plug and Play options. Expand the following for more information

  • Our Universal Harness Service is built to run your engine with only the essential signals required to start and operate—whether it’s in a custom chassis, a swap project, or sitting on a pallet. We strip the system down to what truly matters, providing clean power distribution, proper grounding, and critical sensor integration so your setup starts reliably in virtually any platform. Simple, dependable, and built for flexibility.

  • Our Plug-and-Play Harness Service is designed for seamless installation into supported chassis with absolutely zero wiring required on your end. Every harness is professionally integrated, labeled, and configured to match your specific platform, allowing you to install, connect, and start with confidence. No splicing, no guesswork—just a clean, reliable solution built to drop in and run.

What you Must Provide :

VQ35DE Standard and Rev Up

VQ35DE Engine Harness
Accelerator Pedal Connector
OBD2 Connector

We can make this in Universal or PlugNPlay for Early 03 Sedans and Schassis

THIS HARNESS IS AVAILABLE NEW

VQ35HR Universal & PNP

VQ35HR Engine Harness
Accelerator Pedal Connector
OBD2 Connector
HR 3rd ECU Plug

For 350Z/G35 Plug N Play:
VQ35HR Engine Harness
VQ35DE Engine Harness
HR 3rd ECU Plug

VQ37VHR Universal & PNP

VQ37VHR Engine Harness
Accelerator Pedal Connector
OBD2 Connector
VHR 3rd ECU Plug
VHR Engine Bay Harness

For 350Z/G35 Plug N Play:
VQ37VHR Engine Harness
VQ35DE Engine Harness
VHR 3rd ECU Plug
VHR Engine Bay Harness

We Stock Parts

If you are missing something to complete our harness service, there is certainty that we have in stock. Quit paying online prices and have us be your one stop shop for all your VQ wiring needs.

VHR FACTORY STYLE INTEGRATION

Hexa Garage specializes in complete VQ37VHR engine and transmission integration for the Nissan 350Z and G35 chassis. Our custom harness solution is engineered to make the newer VHR platform communicate seamlessly with the factory systems—restoring full gauge functionality, air conditioning operation, and OEM-level drivability.

Where most swaps stop at “it runs,” we go further. We ensure proper ECU communication, cluster integration, and climate control functionality so your car doesn’t just start—it feels factory. No warning lights, no dead gauges, no compromised comfort.

Our harnesses are built with motorsport-grade materials, OEM-style looming, proper shielding, and clean routing so the finished product looks and functions like it came that way from Nissan. The result is a swap that drives, operates, and feels like a factory-installed VQ37VHR—only better.

Please use this form to get on our wiring schedule or wiring related inquiries