EJ20 / EJ25 - H Tuff Series Connecting Rods for EJ20 and EJ25
 
Subaru WRX EJ20 / STi EJ25 - H-Tuff Series with heavier beam for higher boost applications
 
Manley "H" Beam connecting rods are manufactured from 4340 forgings to the same exacting standards developed and approved by our original equipment customers. There is a vast difference in quality between a Manley "H" Beam and the "other" inexpensive H-Beams on the market. Weight matched to +/- 1.5 grams. Perfectly round big and small ends. Bend and twist is tightly controlled. Cap fasteners are 3/8" ARP 2000 for the "H" Beam and 3/8" ARP Custom Age 625+ for the H-Tuff Plus.