ARP is the leading brand in fastener technology. All fasteners are made with the highest quality materials with quality assurance testing.

This ARP head stud kit uses a proprietary ARP2000 alloy that is rated far superior to aircraft quality alloy steels. Each stud is placed vertically into special racks and precisely heat-treated to 220,000 psi for the ARP2000 material. This procedure ensures complete heat penetration, and the results are far superior.

ARP2000: ARP2000 is a steel alloy that can be safely heat-treated to a higher level than 8740. While 8740 and ARP2000 share similar characteristics, ARP2000 can achieve a tensile strength of 220,000 psi.

Vehicle Compatibility:

– Mitsubishi Lancer Evolution I CE9A
– Mitsubishi Lancer Evolution II CD9A
– Mitsubishi Lancer Evolution IV/V/VI CN9A/CP9A
– Mitsubishi Lancer Evolution VII/VIII/IX CT9A
– Mitsubishi Lancer GTA CT9A
– Mitsubishi Lancer Evolution Wagon CT9W