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The Manley Turbo Tuff I‑Beam connecting rod for BMW N55/S55 applications is a high-strength replacement rod built to support turbocharged, high-horsepower engines. It delivers precision manufacturing and race-minded durability for demanding builds. Specified at 5.683" center-to-center with a 2.110" big-end bore and 0.8671" (22mm) pin bore, it uses 3/8" ARP 2000 bolts, is forged from 4340 or 300M vacuum-degassed steel, and carries an approximate 1250+ hp rating with multiple weight options.
Manley BMW N55/S55 Turbo Tuff Pro Series I Beam Connecting Rods
