EJ20 / EJ25 Forged I-Beam Connecting Rods for Subaru WRX STI

EJ20 / EJ25 Forged I-Beam Connecting Rod Specifications

Engine Platform: Subaru EJ20 / EJ25
Beam Style: I-Beam
Center to Center Length: 130.48mm
Big End Bore: 54.99mm
Pin Size: 23mm
Weight: Approx. 535g each (without bolts)

Material Options:
4340 Forged Steel
300M Steel
Aluminum Alloy
Titanium Alloy

Bolt Options:
ARP Bolts
4340 Bolts
300M Bolts

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High-performance forged I-beam connecting rods designed for Subaru EJ20 and EJ25 engines.

Developed for rebuilds, turbo upgrades, and serious street or motorsport applications, these rods offer a strong and reliable solution for customers who want a proven balance of strength, weight, and durability.

The EJ20 and EJ25 rod dimensions are shared in this design, making this rod suitable for both engine platforms.

Recommended Applications

– Turbocharged street builds
– EJ20 / EJ25 engine rebuilds
– High-boost performance setups
– Track and motorsport applications
– Subaru WRX / WRX STI projects

Why Choose I-Beam Rods?

I-beam connecting rods are often selected for customers looking for a more balanced rod design with good strength-to-weight characteristics.

They are suitable for builds where:
– reliable strength is required
– reciprocating weight still matters
– the engine is expected to see both street and performance use

Key Features

– Precision machined for accurate fitment
– Suitable for Subaru EJ20 and EJ25 applications
– Balanced design for strength and durability
– Multiple material options available
– Multiple bolt options available
– Matching and balancing support available

Custom Support

Need a different material, upgraded bolt option, or a complete rotating assembly package for your Subaru build?

We support custom solutions based on your project requirements.

Contact us for a tailored solution.

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