Part Number: 22999-AT001

Description: HKS Headstud Kit

Fitment: 23+ Toyota GR Corolla

Details:

Strengthened head stud bolts for G16E-GTS engine are now available to further enhance the sealing effect of the GROMMET HEAD GASKET

☑︎ By using bottomed type stud bolts, the active threads in the block side are longer and the stress is dispersed, allowing for higher axial force to be endured

☑︎ ARP Custom Age 625 Plus material gives the highest tensile strength, excellent endurance cycle life and corrosion resistance