ARP Wheel Stud Kit - Subaru WRX/STI, BRZ Stock Length - 5 Pack M12x1.25, 1.750" UHL - 100-7727 Tools Adjustability of the spring seat

Adjustability of the spring seat is no longer needed due to the updated spring and seal design which provides a 60% increase in clamping force at peak boost while maintaining similar operation at idle and transient loads

Have you taken your throttle body coupler off one too many times

Following heat-treat

Replace worn plastic with Delrin & machined aluminum

The direct OEM fit means installation will be effortless with no cutting or modification required

ARP Wheel Stud Kit - Subaru WRX/STI, BRZ Stock Length - 5 Pack M12x1.25, 1.750" UHL - 100-7727 Tools Adjustability of the spring seatHeat treated 8740 chrome moly Tensile strength of 200,000 psi Sold in 4 or 5 packs Cadmium plated for extra durability Lug Nuts not included Specifications Knurl Diameter 0. 509" UHL 2. 000" Knurl Length 0. 315" Nose Length 0. 305" Thread Size M12 x 1. 50 Wheel Stud Hole Size Cast Iron Steel Hub 0. 493" 0. 503" Cast Iron Steel Hub Drill Bit Size (actual dim.) 1 2" (0. 500") Wheel Stud Hole Size Aluminum Hub 0. 493" 0. 499" Aluminum Hub Drill Bit Size