Thank you for viewing. This plug was used in 2023. Compared to regular plugs, the torque is on a completely different level. This is the perfect plug for those who want to win kart races! For those who want to go fast! Also, this plug is no longer in production and is currently very difficult to obtain, so please consider purchasing it as soon as possible. *I have lost the box, so the plug case is homemade. If you don't mind any box, I can change it to a box from another plug.