BOSCH Double Platinum Spark Plug 0242140543 [ ZR6SPP3320 ]

To ensure optimal performance in your car, Bosch has tested each vehicle model and the various engines available for that model listed in the Bosch Spark Plug catalog and on our website. Using a special spark plug with a built-in thermocouple, Bosch engineers find the hottest cylinder in an engine and then test various spark plugs in that cylinder until the ideal plug is found. This ensures that you will always get the best performance possible.