JDC Coil on Plug "Show Series" Hideaway Wire Harness

This harness uses the same high-quality connectors, military spec tefzel wire, and wire sheath as our standard COP wire harness, but this one hides under the mounting plate for a super clean, wire tucked look! This harness offers the same quality and performance as you'd expect from any product offered by JD Customs USA.

How is this harness different?

Both leads come out from the valve cover on the right side and are concealed by a single wire sheath. The right side connector makes its hidden connection behind the thermostat housing and the left side lead can be ran under or over the intake manifold to make its connection behind the valve cover for another hidden connection. 

Will it fit my Ignition System?

This high-quality harness is made specifically to fit the JDC "Show Series" mounting plates, which can be purchased separately here. No modifications are needed for this harness to fit the mounting plate.

This harness may fit your ignition system with Denso coils, but we cannot guarantee the routing of the harness would be the same as if it were used on the JDC Show Series mounting plate. 

This harness does require you to remove the tape or wire loom from your factory ignition harness and move the connection to behind the valve cover. No wires need to be cut to do this. You will need to tape the wire or use another type of wire loom to protect the wires once they are moved. This is a very easy task to complete and hides the connectors from being seen, which gives your car a"wire tucked" look. 

Watch the install video

Mitsubishi Evo 4-9

Fully assembled

Waterproof

High-quality wire sheath

Military Spec Tefzel wire

Pins are professionally crimped and sealed

Hidden appearance

Cleaner look

Lifetime warranty

 

Customer Reviews

Based on 2 reviews
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J
Joseph R. (Anaheim, US)
CO plug harness

Awesome for that cleaner engine bay look

Thanks for your business!

J
Joseph
CO plug harness

Awesome for that cleaner engine bay look

JD Customs USA

JD Customs USA specializes in bespoke titanium pieces with virtually unlimited customization options. Known for vibrant colors and unmatched craftsmanship, we bring your creative visions to life. From precision to personalization, our commitment to quality ensures every piece exceeds expectations. At JD Customs USA, we don’t just create products – we deliver perfection.

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