
NGK Spark Plug-R2558E-9-97537
*Each Plug sold separately. Racing Spark Plugs for FB20 2013+ BRZ / FRZ / 86 / GT86 NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Special insulator nose configurations improve throttle response Corrugated ribs prevent flashover Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer Copper core aids in heat removal Triple seals prevent leakage Shell Thread Size: 12mm Seat Type: Gasket Resistor Value: 5K Ohm Reach: 26.5mm (1.04") Hex Size: 9/16" (14mm) Terminal Type: Solid Gap: .028" (0.7mm) Center Electrode Material: Iridium Type: Fine Wire Projection: Recessed Ground Electrode Material: Platinum Type: Slant Quantity: 1 Specifications Warranty: 1 Year Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft. Brand: NGK Heat Range: 9 Resistor: Yes