ARP’s customer list reads like a “who’s who” of motorsports around the world, virtually every major championship on the planet has been won with engines prepared with ARP products including NASCAR, CART and IRL, Formula 1.
The rod bolts are placed under huge stress in a modified engine and eventually will snap usually damaging the entire bottom end. Replacing these with uprated bolts should be considered an essential upgrade for any performance engine.
Available for the E30, E36, Z3 and E46 and Z4M.