The HKS Circle Earth System eliminates fluctuations within the vehicle body and allows electronic parts to perform at 100% of their potential. much, By utilizing the HKS circle adapter plate and multiple grounding points, you will see an increase in power and torque, brisk throttle response, smoother idle and engine starts, brighter headlight illumination, improved sound quality and fuel economy. Includes approximately 16 feet of high quality wire, 24k gold plated components and everything else shown for an easy installation. 100% genuine HKS product. Part# 48004-AK001. Made by HKS Co., Ltd. Japan.