HKS Circle Earth System Grounding Kit Subaru WRX incl. STi Exhaust Muffler U10 X2 M35i

U10 X2 M35i

The internal surfaces incorporate Eventuri’s signature dimpled geometry

or drive in challenging conditions

After successfully installing one side

Organically shaped carbon inlet tubes reduce turbulence and restriction

HKS Circle Earth System Grounding Kit Subaru WRX incl. STi Exhaust Muffler U10 X2 M35iHKS 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