The Bosch Fine Wire Double Platinum Spark Plug meets OEM fit, form and function requirements for conventional gasoline engines. It offers improved ignitability, power, acceleration and throttle response, and it is designed to last three times longer than a standard spark, according to the company. The Fine Wire Double Platinum Spark Plug can be used as an upgrade from copper or single platinum spark plugs. The spark plug series offers replacements for OE double platinum spark plugs in current gasoline direct injection applications.