JDC Coil-On-Plug Ignition System | Hitachi GT-R Coils | Evo 4-9

JDC Coil-On-Plug Ignition System | Hitachi GT-R Coils | Evo 4-9

Struggling with spark blowout on your stock or worn-out ignition system? Upgrade to the JDC Coil-On-Plug (COP) Ignition System, a direct replacement for your Mitsubishi Evolution 4-9 factory coils and ignition wires. This plug-and-play system requires no assembly—simply remove it from the box, install it on your car, and experience instant improvements in ignition performance!

This system utilizes authentic Hitachi R35 GT-R ignition coils to withstand upwards of 1100+ horsepower without needing a CDI box! We chose to go with the Japanese made Hitachi coils instead of NGK coils, which are made in Mexico. The Hitachi coils on the 2009+ GT-R are known to handle 1700+whp, and that’s why they’re the top choice for the R35 GT-R. This system will plug straight into your factory wire harness without any modifications. It’s a simple, 10-minute installation (please see Tuning and Usage Notes.

Tuning and Usage Notes:

• We suggest installing your cop system with dielectric grease to reduce the chances of corrosion in the springs.
• We suggest setting the factory dwell time at 3.4ms @14v to help keep the coils cool.
• These upgraded coils can support up to 4.5ms which would allow you to run an even larger spark plug gap for better combustion, which could support even more horsepower.
• For example, 3.0ms @14v has easily supported 870whp on a mustang dyno.
• Saturation that could shorten the life of the coils and cause premature failure would be around 5.5ms @14v.
• For high-power builds a .014 – .018 spark plug gap may be sufficient but will vary depending on your individual vehicle.

Warranty Information:

• Coils- 3 years
• Click here for more info on Lifetime Coil Warranty!
• Wire harness & mounting plate- Lifetime
• Warranty only applies to the original buyer and is non-transferable
• Warranty does not cover water damages or any other abnormal issues due to improper maintenance or care.