Universal Type fits Subaru Horizontal Boxer 4Cylinder.

The ground wire improves electrical grounding in your engines, improving spark plug performance, engine performance and audio quality.

Improves engine and spark grounding.

Increase torque in the low speed range

Improve throttle response and stabilizes high RPM.

Easier to start and more stable idling

Improved fuel efficiency and cleaner exhaust

Improved grounding for better audio quality and lighting