Keep your vehicle running reliably and improve ignition performance with Bosch Spark Plugs. Bosch are a household name in Australia and are known for offering reliability, performance and of course value. Add to that the fact that Bosch have been producing spark plugs for over 100 years and you know your purchasing a quality product. The Bosch range of spark plugs are created using an Yttrium-enhanced centre electrode to provide longer life compared to standard copper-core plugs