When racing professionals in NHRA, IHRA, NASCAR, and Formula 1 competition need bullet-proof fasteners for their high-performance machines, they turn to one company: ARP. Since 1968, Automotive Racing Products has been engineering and perfecting bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, transmissions, and more. ARP uses only top-quality materials far above the usual aerospace quality others settle for in a highly exacting manufacturing process to create fasteners with the strength and durability to last race after race. XAT Racing leads the world in Toyota/Lexus V8 parts! Vehicles that came with these engines include SC400, GS400, LS400, SC430, GS430, LS430, GX470, LX470, Land Cruiser, Tundra, Sequoia, and Celsior, Soarer, Aristo, and Crown.