• 5.141in I-Beam Extreme connecting rod
• ARP Custom Age 625+ fasteners included
• Reinforced I-beam design for extreme high-horsepower use
• Sold individually

An I-Beam Reinforced for Extreme Use

Brian Crower's I-Beam Extreme rod takes the classic I-beam design and reinforces it specifically for extreme high-horsepower applications, where a standard I-beam rod starts to become the weak link in the build. At 5.141 inches, this rod is dimensioned specifically for the EJ205/EJ257 platform rather than a generic length adapted to fit. For a genuinely serious, high-boost build, that reinforced I-beam geometry provides meaningfully more strength margin than a standard I-beam rod without the added weight of a full H-beam design. That combination of durability and performance is what makes it worth the upgrade.

ARP Custom Age 625+ Fasteners for Maximum Clamping Load

This rod includes ARP Custom Age 625+ fasteners, a premium bolt material matched to the rod's own high-strength construction rather than a generic bolt that happens to fit the thread pattern. That fastener-to-rod material matching matters enormously at the clamping loads a serious connecting rod bolt experiences under hard use. It's sold individually, so make sure you're ordering the full quantity needed for your engine's cylinder count. It's the kind of upgrade that quietly does its job without ever needing a second thought.

Straight From Subispeed

A reinforced, extreme-duty connecting rod for 2002-2005 WRX / 2004-2014 STI builds pushing serious horsepower — sold individually.

This Part Fits: