A new proposal for those seeking improved performance and fuel efficiency through earth tuning. With conventional earthing, the negative terminal of the battery is usually connected to an earth point. But, think about it. What happens if you disconnect the battery while the engine is running? Those with some knowledge will know immediately. That's right, the engine doesn't stop. This is because after the engine starts, most of the car's electrical components are powered by the electricity generated by the alternator. The alternator's earth is the engine itself. You should understand what we're getting at by now. Many of the vehicle's electrical components are earthed to the body and pass through the metal parts of the vehicle, returning to the negative terminal of the battery and the engine. The negative terminal of the battery is connected to the body. It can be said that connecting to the engine itself more effectively is more effective than gathering the earth to the negative terminal of the battery. DIY-LIFE proposes a new earth tuning method that effectively earths by connecting the body and the engine. Product Details: Extremely thick 22sq equivalent braided wire with 6mm diameter terminals. Includes two copper washers for contact points. *The genuine earth enhancement cable sold by DIY-LIFE (intended to be connected to the negative terminal of the battery) has heat-resistant sheathing, but this product does not. Because it is intended to connect the engine and body, it uses braided wire with excellent heat dissipation. *Special processing makes the wire less likely to bend and easier to install. *Uses high-quality flat braided copper wire (plated surface treatment) from a domestic manufacturer.