B58 ARP Main Stud Kit 730i while L19 boasts a tensile

while L19 boasts a tensile strength of 260

Extensive hours were dedicated to testing various camshafts and meticulously comparing the results

Crafted to handle high RPMs with ease

This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when motor oil or other low quality lubricants are used

Avionics-quality hard chrome plating for superior heat resistance

B58 ARP Main Stud Kit 730i while L19 boasts a tensileThis ARP Main Stud Kit is designed to replace BMW part numbers 11128644674 and 11127613127 for the B58; B58A, B58C, B58D engines found in varies BMW chassis F22, F23, G20, G22, G23, G26, G30, G01, G02, G29, G42, G43, F30, F31, F32, F33, F34, F36 and the Toyota GR Supra A90 A91 chassis. Upgrading from factory main bolts to ARP Main Studs is a simple, yet greatly beneficial upgrade. ARP Main Studs offer the following benefits: Uniform Clamping Force: