ARP 203-4703 Head Stud Kit for TOYOTA 1.8L (1ZZFE) 4-cylinder ymm_21 Power and torque are increased

Power and torque are increased by 3

increased sportiness and responsiveness with additional power and torque

This spacer is designed for O2 sensors with a 90 degrees angle

L19: This is a premium steel that is processed to deliver superior strength and fatigue properties

Fitment notice: The mirror cap set does not fit right-hand drive vehicles

ARP 203-4703 Head Stud Kit for TOYOTA 1.8L (1ZZFE) 4-cylinder ymm_21 Power and torque are increasedIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, theres not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200, 000 psi. This procedure ensures complete heat