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JD Customs U.S.A

JDC DIY Hitachi GT-R Coil-On-Plug Ignition Systems (Evo 4-9)

JDC DIY Hitachi GT-R Coil-On-Plug Ignition Systems (Evo 4-9)

Regular price $230.00
Regular price Sale price $230.00
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Mounting Plate
Mounting Hardware

JDC DIY Hitachi GT-R Coil-On-Plug Ignition Systems


Suffering from spark blowout issues on your underpowered OEM coils? The JDC Ignition System is what you need!

The DIY JDC Ignition System allows you to purchase the same high-quality wire harness, mounting plate, mounting hardware, and coils if needed but leaves the assembly up to you!

Please Note: Titanium Mounting Plates are only available with Titanium Hardware

  • Lifetime warranty on wire harness and mounting plate
  • Recommended use with Hitachi coils for GT-R ( IGC0079)
  • 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 Wire Harness (no assembly required)¬†
  • Black Anodized 6061 Aluminum, Carbon Fiber, or Titanium mounting plate
  • Stainless steel or Titanium hardware
  • Titanium Mounting Plates are only available¬†with Titanium Hardware
What's in the box?
  • Mounting plate
  • Assembled Wire Harness
  • Mounting Hardware
  • 15A Fuse
  • Installation Instructions & warranty information
  • JDC Stickers for the top of each coil
Which coils should I use? 

We highly recommend buying the coils from us, as there is slight modification needed to make them work properly. If you purchase them from us, we will make the modifications needed for you.

We recommend running authentic Hitachi coils for the GT-R, as they are the OEM manufacturer of the coils that come on the GT-R. The most popular part number for the best performance would be Hitachi (IGC0079). These have been used by the top companies in the industry for many years and have proven to be the best performing and longest lasting option available. There are also other options with Hitachi style connectors. Select your options from the drop-down menu and let us know if you have any questions!


Titanium mounting plates come standard in the burnt finish. To request a certain color please email or message us before purchasing. Please make sure to only clean titanium with Windex and a microfiber towel or a Clorox wipe. Harsh chemicals may tarnish or remove the colored finish. 

Don't forget to change your spark plugs! Add them to your order here: Spark Plugs

Check out these review/install videos!

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