The Okada Projects' Plasma Ground kit for the 07-09 R56 Mini Cooper S works perfectly with all other Okada Projects Plasma Ignition parts and increases secondary spark discharge current. The ground kit is connected at the ground side of the ignition coil and increases performance and engine efficiency by creating an ultra fast alternating current at the secondary spark discharge, this is called Coil Ground Tuning. Increase in secondary current is extremely important, since it creates a faster burn for high performance engines.