Description
These head studs are a new addition to the ARP line up. These 11mm head studs are spefically made for a 058 blocks in all 97-99.5 AEB Audi A4/Passats. These will also work on other engine code 20v blocks in other countries that have external waterpumps and are 058. With these studs you can unscrew the hardware with an allen key and take the head off just as easily as you can with stock head bolts! We recommend using these studs on any project making in excess of 600whp. We have made over 700whp on stock head bolts without failure but do not recommend it for extended use. All ARP hardware is reusable unlike the factory hardware.