Denso Iridium Power Plugs Two Step Colder Set of 4 | Multiple Fitments (IKH24)

Denso Iridium Power Plugs Two Step Colder DENSOs Iridium Long Life plug is fast becoming the standard for todays high-tech engines. The properties of DENSOs patented Iridium alloy have broken through the spark plug technology barrier. Employing a revolutionary new 360 laser welding process, DENSO has created a spark plug unlike anything on the market today. Designed for durability under the most extreme conditions, DENSOs patented Iridium alloy is six times harder and eight times stronger than conventional platinum and can handle temperatures in excess of 4,000F. Features Long Life plug Iridium alloy is six times harder and eight times stronger than conventional platinum Can handle temperatures in excess of 4,000F Applications 2006-2014 Subaru Impreza WRX 2004-2018 Subaru Impreza WRX STI 2015-2018 Subaru WRX STI 2004-2008 Subaru Forester XT 2004-2008 Subaru Legacy GT What's in the box? (4) Denso Iridium Power Plugs Two Step Colder