These German made plugs are a great upgrade from the stock plugs as well as nice upgrade for a tuned MINI. Two versions; each tuned for different applications will keep your MINI smiling. Choose the 'Colder' plug for cars with performance mods like smaller pulleys, exhausts, etc. Choose the 'Standard' plug for cars that are closer to stock. Priced as a set of 4.

About the diagram on the right: Schematic diagram of spark paths.
1. Air sparks
2. Auxiliary surface gap sparks
3. Air/surface gap sparks

The multifunctional principle for optimum ignition reliability: Different functional principles are available for the spark process – air spark technique, surface gap spark technique and the combined air/surface gap spark technique. The sketch shows the spark process with the Ultra X as an example and explains three of the 6 possible paths available to the spark here.

Technical Features:

- Reliable ignition: Combined air/surface gap technique. Ignition reliability by several spark paths.
- Powerful: Optimal combustion due to protruding spark position
- Cold start reliability: Self-cleaning function by surface gap spark technology.
- Reliable: Quickly reaches the ideal operating temperature by a special insulator mount and intricate earth electrodes.
- Environmentally friendly: Pollutant emissions minimized and catalytic converter protected due to effective combustion


Fits these MINI models:

R50: 2002-2006 Hatchback: Cooper
R52: 2004-2008 Convertible: Cooper and Cooper S
R53: 2002-2006 Hatchback: Cooper S