Wiring Conversion Harness
Our wiring conversion harness makes it easy to wire a K series into your Miata. We offer two configurations.
If you'll be running Hondata Kpro for engine management, choose the 2002-2004 RSX Type S spec harness. If you'll be running KTuner, or a KMiata ECU reflash, choose the 2003-2006 Honda Element manual spec harness.
For installation, eight wires need to be spliced into the factory Miata dash harness, and the rest is almost all plug and play. We recommend modifying the factory Honda harness slightly to accommodate for different lengths needed for the RWD configuration.
Once the wiring is completed, the factory Miata gauge cluster is 100% functional. Complete wiring instructions can be found in our installation guide.