Bosch Double Platinum Spark Plugs are engineered for up to 3X longer service life. GENUINE BOSCH SPARK PLUGS . Double Platinum Spark Plugs. Laser welded Platinum inlay ground electrode provides 3X longer service life .
Bosch Super Spark plugs arrived on time. They came together but each in their own box. My Audi TT is firing at least 6xs better then it was. Oh and your spark plugs shouldn't look like the NGK brand I pictured.