NRG - Voltage & Ground Wire Kits (GK-100BL)The Ground Wire Systems centralize the grounding point of the electrical mechanisms on the vehicle. By installing onto the battery's negative terminal or chassis for proper grounding. Ground Wire Systems cause less fluctuation on the electrical system, improves overall performance and responsiveness of the engine end electrical components. These are must have for any vehicle with engine swap since proper grounding tends to be an issue associated with