Bosch premium spark plug: manufactured in Europe from one of the leading global automotive suppliers
First-class spark plug technology: based on original equipment and engineered to the specific requirements of the engine
Plugs easy to replace: factory-pre-set electrode gap, no adjustment necessary; Bosch advices not to lubricate the thread. Requested tightening torque or angle see on package
Excellent wear resistance: precious metal alloy at center and ground electrode