Precision 3D Printed Solutions for Performance Builds
At CarChains3D, we design and manufacture high-performance 3D printed parts that bring modern technology to classic and custom vehicles. From digital dash clusters and ECU mounts to wiring bulkheads and custom inserts, every product is built with precision, durability, and seamless fitment in mind. Whether you’re restoring, racing, or upgrading, our goal is simple—deliver innovative solutions that make your build cleaner, smarter, and faster.
This custom made harness provides Power, Ground, CAN Low and CAN High to the NexLINK series of ECU interfaces. It connects directly to your Holley ECU and also provides another connector which allows you to connect another CANBus based device or even your Holley 3.5″ display.
**The initial batch of harnesses have the following wiring schematic, yes the BLACK is in the wrong spot and is NOT A GROUND**
RED – POWER YELLOW – GROUND BLACK – CAN High BLUE – CAN Low
