ARP Audi RS3 TTRS 2017+ DAZA/DNWA 2.5 TFSI CA625+ Head Stud Kit

These are the strongest stock fitment (10mm) head studs available for the DAZA & DNWA engines.

Countless hours were spent torque testing and dissecting the block to design a stud that fits perfectly and engages all of the threads available. This is our custom ARP CA625+ head stud kit for the Audi 2017+ DAZA & DNWA 2.5 TFSI engine.

Custom Age 625 Plus®: This newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness – with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. Typical tensile strength is 260,000-280,000 psi.

Application: 2017+ Audi 2.5 TFSI DAZA & DNWA 404-4708