NGK Iridium Series IRITOP spark plugs, heat range 8, one set for 6 plugs, for Soarer [GZ10, GZ20] from 60.1 to 61.12, [1G-GEU] engine. Product Code: IRITOP8 Manufacturer: Toyota Car Name: Soarer Model: GZ10, GZ20 Year: 60.1~61.12 Engine: 1G-GEU Displacement: 2000cc Quantity Needed: 6 Heat Range: 8 Thank you.