MANLEY H-TUFF PLUS Steel Connecting Rods [Center-to-Center 5.137" | Big End Bore 2.165" | Big End Width .840" | Pin Diameter .905" (23mm) | Pin Bore .9063" | Avg. Gram Weight 575] (SUBARU EJ205 & EJ257)

Manufactured from 4340 forgings
Heat treated, stress relieved, shot peened and 100% individually magnafluxed
Weight matched sets + 1.5 grams
Cap fasteners are 3/8" ARP 2000 for the H-Tuff and 3/8" ARP Custom Age 625+ for the H-Tuff Plus
Flywheel horsepower range for the these rods in a 4 cylinder application is 750 with the ARP 2000 bolts and 950 with ARP 625+ bolts. In a 6 cylinder application the horsepower range is 1000 with the ARP 2000 bolts and 1200 with the ARP 625+ bolts.

WRX EJ205/STi EJ257