Thank you for viewing. This is a Fuel Bank evo II. I used it in my Note, and I could definitely feel the improvement in fuel efficiency and torque. It seems to be installable on any vehicle. The connection is as follows: one end to the negative terminal of the battery, and the other end to the engine body or a bolt near the surge tank for grounding (shared tightening). There is no specific location, so if the effect is weak, please try connecting it to various places. There are scratches and dirt due to the used condition. Please understand. Shipping will be via Yamato Transport.