Manley 14416-4 Turbo Tuff I-Beam Connecting Rod Set for Subaru EJ20/EJ25

Vehicle Fitment

• 2002-2014 Subaru WRX (EJ20/EJ25 sport compact turbo engines)
• 2004-2021 Subaru WRX STI (EJ20/EJ25 turbo engines)
• Other Subaru EJ20/EJ22/EJ25 models (Legacy, Forester, Outback, Impreza - verify specific trim)

Features

• Pro Series I-Beam "Turbo Tuff" design for strength under high loads
• Forged from 4340 aircraft-quality vacuum-degassed steel for durability and performance
• Shot peened and 100% magnaflux inspected to identify and eliminate imperfections
• Weight-matched rod set for improved engine balance and smoother operation
• Fully machined big and small end bores with precise tolerances
• Includes high-strength 3/8" ARP 2000 rod bolts for reliable clamping force under boost
• Designed for turbocharged engines and extreme power applications
• Capable of supporting ~1000+ hp with ARP 2000 hardware installed

Specifications

• Center-to-Center Length: 5.137" (130.5 mm)
• Big End Bore Diameter: 2.165" (54.99 mm)
• Big End Width: 0.840"
• Pin Diameter: 0.9055" (23 mm)
• Pin Bore: 0.9063"
• Approx. Rod Weight: ~560-590 g per rod
• Rod Style: I-Beam, Pro Series Turbo Tuff
• Fasteners: Included 3/8" ARP 2000 rods bolts

Included Components

• 4x Pro Series I-Beam Connecting Rods
• 4x ARP 2000 3/8" Rod Bolts

Product Description

The Manley 14416-4 Turbo Tuff I-Beam Connecting Rod Set is engineered to upgrade Subaru EJ20 and EJ25 turbocharged engines found in WRX and WRX STI applications. These forged 4340 steel rods are designed with a Turbo Tuff I-Beam profile that balances strength and weight for extreme performance builds. Each rod is shot peened after machining and magnaflux inspected to ensure maximum integrity under the stresses of turbo boost and high RPM operation.

Weight matched for consistency and fitted with high-strength 3/8" ARP 2000 rod bolts, this set is ideal for street, track, or competition engines pushing around 1000+ hp when supported with proper components and tuning. Whether building a high-boost WRX, STI, or other EJ series performance engine, these connecting rods deliver reliable strength and balance for demanding applications.