ARP Automotive Racing Products - Connecting Rod Bolt Kit - BMW 2.3L E30 M3 (S14) M11, 43mm UHL
ARP Pro series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. They are heat-treated and threads are rolled to provide up to ten times more fatigue strength. This makes them far superior to standard OEM fasteners in terms of durability, and fully capable of handling the extra stress of high-combustion engines.
1998-1991 BMW M3 L4 2.3L/2302cc S14