A new proposal for those seeking improved performance and fuel efficiency through earth tuning. With conventional earthing, the most common method is to connect the negative terminal of the battery 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 ground is the engine itself. You should understand what I'm getting at by now. Many of the vehicle's electrical components are grounded 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 ground to the negative terminal of the battery. DIY-LIFE's new earth tuning method aims to effectively ground the body and the engine together.