What type of bolts are included with these connecting rods?

These Manley H-Tuff Plus connecting rods offer a choice of high-strength ARP bolts. You can select either the ARP 8740 or the ARP 2000 bolt option to best suit your engine build's requirements.

Are these connecting rods suitable for a stock engine?

While these rods are built to exacting tolerances and offer improved strength over stock, they are primarily designed for performance applications where engine loads are increased. For a stock engine, they offer significant durability but may be overkill depending on your intended use.

What is the benefit of the H-beam design?

The H-beam design is known for its excellent strength-to-weight ratio. This means the rods are very strong and can withstand higher stresses, while still being relatively lightweight, which is beneficial for engine performance and balance.

Specifications

Brand: Manley Performance
Part #: 15024R6-4
UPC: 807298084657

Manley Subaru WRX EJ205/STi EJ257 H-Tuff Plus Connecting Rod Set

Name: Manley Subaru WRX EJ205/STi EJ257 H-Tuff Plus Connecting Rod Set
Brand: Manley Performance
SKU: manley-performance-manley-subaru-wrx-ej205-sti-ej257-h-tuff-plus-connecting-rod--t14-281161
Price: 1024.52 USD
Availability: InStock

$1024.52

Only 5 left in stock

Manley H-Tuff Plus Connecting Rod Set for Subaru WRX EJ205/STi EJ257. Built with H-beam design for improved engine strength.

Key Features

Fits Subaru WRX EJ205 and STi EJ257 engines.
Forged H-beam construction offers improved strength and durability.
Finished to exacting tolerances for precision and performance.
Available with choice of ARP 8740 or ARP 2000 connecting rod bolts.
Detailed attention paid to hone size, thread detail, bend, and twist.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Manley's H-Tuff Plus connecting rods are forged from strong H-beam steel, a design known for its excellent strength-to-weight ratio, making them a solid choice for performance Subaru EJ205 and EJ257 engines. These rods are finished to very precise measurements, ensuring that every rod in the set is nearly identical. This attention to detail, from the final hone size to the thread quality and the straightness of the rod, is critical for proper engine balance and longevity, especially when you're pushing your engine harder than stock.

What really sets these rods apart is their robust construction and the options you have for the critical connecting rod bolts. You can choose between ARP 8740 or ARP 2000 bolts, both well-regarded for their strength and reliability under high stress. This flexibility allows you to match the rod's capabilities to your specific build needs, whether you're aiming for a mild performance improvement or a more aggressive setup. The H-beam design itself is a step up from stock, offering a significant increase in durability for engines that see regular track use or modified performance tuning.

When you're rebuilding the bottom end of your Subaru's engine, especially for performance applications, the connecting rods are a key component. Manley has a long history of producing well-built engine parts, and this H-Tuff Plus set continues that tradition. They are designed to handle the increased loads and stresses that come with performance tuning, providing peace of mind that your engine's rotating assembly is well-supported. Make sure to consult your engine builder or a trusted mechanic for specific installation recommendations and torque specifications for your application.