Spark power is controlled by the coils if the plugs try to up it then its going to be curtains for the ignition system.
Go for some clean burning plugs like Denso Iridium's they don't give the spark more kick but help ensure it stays at as close to the output from the coils as possible and have wider service intervals.
__________________ One thing you will learn with German cars - If it's simple it ain't happening. |