Tomei Forged H-Beam Connecting Rods (130.50mm, Set/4), 2002-2014 WRX & 2004-2021 STi

Transmits the reciprocating motion of the pistons to the crankshaft and converts it into rotary motion. High strength is required to receive large amount of pressure from the pistons.
Resistant to torsion and has achieved reduction in weight while maintaining the same strength as I beam design.
The shoulder shape is smoothed by making the connecting rod bolts a through bolt type and improving the rigidity of the big end.
The rigidity of the connecting rod caps is increased by the two ribs and preventing bearing failure due to deformation of the big end.
Bearing failure from deformation of the big end is prevented by keeping the high rigidity of the big end with large diameter dowel pin.
Seizing failure is prevented by increasing the amount of oil supplied, and the offset placement increases strength against pulling at high revolution.
The fatigue strength and tensile strength are increased compared to the general ARP2000, and the big end is joined more firmly.

Included:
• High Strength ARP L19 Bolts
• ARP fastener assembly lube
• FORGED H-BEAM CON-ROD EJ20/EJ25 130.50MM (STD)

Features:
• Lightweight and high rigidity
• Rigidity of the big end improved by slant design
• Rib shaped caps
• Large diameter dowel pin
• Oil supplied by 2 ports to the small end
• High strength ARP L19 bolts