ARP BMW E46 M3 Z4 / S54 Rod Bolt Kit (M11)

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.

Starting in 1968, ARP have plenty of experience in the market, starting from Design, Installation and metallurgy, right through to selecting the best materials and recognizing common failures. The company was originally founded by Gary Holzapfel after noticing many engines at the time were breaking due to fastener failure. Spotting this type of gap in the market and acting on it has created a global automotive products company, still going 50+ years later! To this day ARP have thousands of unique part-numbers available to supply to the market, covering virtually every engine fastener in the world!