JDC Coil-On-Plug Ignition System (Evo 4-9)
Suffering from spark blowout issues on your underpowered OEM coils? The JDC Ignition System is what you need!
The JDC Coil-On-Plug Ignition System is a direct replacement to your factory Evolution 4-9 coils and wires and simply plugs in and bolts down! No assembly required! Simply remove the setup from the box and install it on the car. This system utilizes 100% authentic high performance, Japanese made Denso Ignition Coils, not the cheap off brand coils that won't perform as well or last as long.
This ignition system is designed for use with the stock ECU and are compatible with AEM EMS V1 & V2, Haltech, MegaSquirt and the SunAuto Hyperforce. This system will NOT work with CDI boxes or the HKS DLI.
- 3 Year warranty on new Denso coils, 2 year on refurbished, lifetime warranty on wire harness and mounting plate
- Fits under OEM spark plug cover and most aftermarket covers
- Tested to 913whp @ 0.020" plug gap
- Military spec wire sheath, rated to 428degF
- Military spec tefzel wire, rated to 393degF
- Waterproof seals on all ports of wire harness
- Plug and Play (no assembly required)
- No retune needed after install
- Gain HP/TQ (8-20 hp is the norm, mod dependent)
- Greatly reduce or eliminate partial throttle bucking
- Better idle quality
- Quicker and easier start especially in colder weather with E85
- Run more boost without spark blowout issues
- Run more gap for better fuel burn and increased mpg
- Plugs last longer due to less fouling
- Plug changes take minutes less
- No problem prone CDI Boxes
- Choice of satin black, carbon fiber, or Titanium mounting plate
- Choice of standard or "Hideaway" wire harness
- Non corrosive stainless steel hardware. (Click here for titanium)
- Assembled JDC Coil-On-Plug Ignition System
- Mounting Hardware
- 15A Fuse
- Installation Instructions & warranty information
Introducing our new '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. This harness is sold separately, or can be added to any of our ignition system options for an additional $30.
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. Click here for more info on the "Hideaway" harness.
Don't forget to change your spark plugs! Add them to your order here: Spark Plugs
If you have any questions before placing your order visit our Instagram @JD_Customs_USA and send us a message or you can call or text us at (423) 665-9616. Business hours are Monday-Friday 8:00-5:00. All calls or texts received after hours will be returned the next business day if you leave us a message.
Check out these review/install videos!
I order a evo8 plate by mistake. Called they had no problem exchanging them for evo 9 plate. (I have a stock evo with just intercooler,piping,stm exhaust) first crank i notice a difference in the car! The detail he puts into these are amazing! Only thing is the plugs are just a tad to long but since i have a cover it fit perfect. Literally plug and play.
Love it, exactly what I needed. Crafted beautifuly, works beautifuly. And you can’t beat the price! Install was simple and quick!
Got the JDC coil on plug kit for my Evo V and love it! Looks amazing! Idles super smooth and had stupid-proof install!
I am so glad.that i bought this C.O.P kit. Before my car would stall from time to time and have issues getting it into higher boost. But after getting this, it made my car more resposive, more spark, start up better and did not hesitate as i get on full throttle. I am satisfied! Awesome JD Custom!
Easy plug and play. Everything works as it should. The car feels more responsive for sure. Better idle.