HKS Circular Grounding System utilizes a 24 karat gold plated distribution block and multiple grounding points for improved idle and drivability. Additional grounding points equalize resistance and voltage between various ground points on the car resulting in a more stable electrical system. This will yield better engine response and horsepower by allowing the electrical accessories to work more in tuned with each other offering a more accurate reading. Each cable is an 8 gauge spiral twined wiring wrapped with signature HKS purple plastic to protect and add color to the Circle Earth System.
This is a application specific kit that will work with all Mitsubishi Evolution CT9A. Universal Circle Earth Kits are also available which will included universal wiring available for installation for any applications without a specific kit.
| Year | Make | Model | Trim | App Notes |
| 2001 - 2007 | Mitsubishi | Lancer Evolution | All | None |
