4 X Standard Spark Plugs for all 2ltr Impreza Turbos.

4 x NGK Platinum spark plug that is ideally used when a car is running slightly hotter cylinder temperatures, from increased boost levels. For all 2.0 litre Imprezas.

4 x NGK Iridium spark plugs for heavily modified 2.0ltr Impreza Turbo's.

4 x NGK Iridium Racing Spark Plugs for heavily modified 2.0ltr Impreza's, fitted with Nitrous

4 x NGK Iridium Racing Spark Plugs for heavily modified Impreza's used on track.