McCully Racing Motors- Your Wiring Woes are Over...

Modified Conversion Harness

Cheer for your wiring woes are over! Introducing the MRM Modified Conversion Harness!

· Includes a 21-page installation manual with over 40 color photos!

· Includes a completely custom Fuel Pump Relay circuit.

· Completely eliminates the need to “fool” the computer into not triggering the check engine light.

Price: $200.00 (core charge-see below)

Feeling a bit daunted by the prospect of modifying your own Mustang harness for your Ford Miata conversion? Having trouble finding a good harness to modify? Don’t go and spend $600 or $700 for a new one, send your Mustang harness to us and we’ll modify it for you. After we receive your harness we start by stripping off all the old tape and split loom and completely cleaning each individual wire. Once that’s done we inspect the harness and ether repair of replace any damaged portions. Then we remove any unused wires and plugs and reroute the remaining ones so that the harness will literally “drop-in” to a Mazda Miata. We then add a circuit to allow the Ford ECU to run the Mazda fuel pump without the need of a jumper circuit. Lastly we label each and every connection so you know exactly where to hook it into your Miata’s existing wires.

Core Charge Explanation:

If you don’t have a Mass-Air Mustang harness to send us we’ll find you a donor harness in a local salvage yard or on eBay! All we ask is that you reimburse us for the cost of the donor harness and the cost to ship it to us. Typically good, unmolested Mass-air Mustang harnesses go for about $100 to $130 on eBay. Another option is to go and purchase a harness yourself and have it shipped directly to us.