Overview
Manley Forged I-Beam Connecting Rods for Subaru WRX | STI | EJ20 | EJ25 (2020-2021)
If you’re looking to boost your Subaru WRX or STI’s performance, the Manley Forged I-Beam Connecting Rods are a fantastic choice. Designed specifically for the EJ20 and EJ25 engines from 2020 to 2021, these connecting rods are engineered to handle high horsepower applications while ensuring reliability and strength.
Why Choose Manley Performance?
Manley Performance is known for manufacturing some of the best steel connecting rods in the Sport Compact industry. Each rod is crafted from aircraft-quality 4340 vacuum degassed material, ensuring durability and performance. The rods undergo a meticulous machining process at the Manley factory in Lakewood, NJ, where they are built to the highest standards.
Turbo Tuff Design
The unique “Turbo Tuff” design of these rods strikes the perfect balance between weight and strength, making them ideal for applications that demand maximum horsepower. Each rod is shot peened after machining to enhance fatigue resistance and is magnafluxed to ensure there are no hidden flaws.
Precision Engineering
- All rods are weight matched to within ± 1.5 grams.
- Big and small end bores are final honed to a tolerance of ± .0002″.
- Critical bend and twist attributes are tightly controlled for consistent performance.
- Cap fasteners are robust 3/8″ ARP 2000 cap screws.
These attention-to-detail practices ensure that each finished product is second to none, giving you confidence in your build.
Specifications
- Center-to-Center: 5.141″
- Big End Bore: 2.165″
- Big End Width: .840″
- Pin Diameter: .9055″ (23mm)
- Pin Bore: .9063″
- Weight: 613 grams
Fitment and Performance
These connecting rods are rated for up to 1,000 horsepower with ARP 2000 fasteners and can handle even more—over 1,200 horsepower—if you opt for the available ARP 625+ fasteners. This makes them a perfect upgrade for any serious performance enthusiast looking to push their Subaru to new heights.
Customer Feedback
Customers rave about the quality and performance of the Manley Forged I-Beam Connecting Rods. Many appreciate the precision engineering and the noticeable improvement in engine response and reliability. Users have noted that these rods are a solid investment for anyone serious about their Subaru performance upgrades.
Upgrade your Subaru WRX or STI with the Manley Forged I-Beam Connecting Rods and experience the difference in power and reliability!
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Fitment
Make Vehicle |
Model | Year |
---|---|---|
2002-2017 Subaru STI |
STI | 2002-2017 |
2002-2021 Subaru WRX |
WRX | 2002-2021 |
About Brand
How did Manley Performance Start?
Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.
Evolving in the Automotive Space
Led by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.
What is Manley’s Specialty?
Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.
Get Manley Performance at Vivid Racing
If you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.
If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 906-4066. We are here to make your buying experience a breeze.
Warranty
Due to the intended usage of the products sold by Manley Performance Products, Inc., they are sold WITHOUT WARRANTY OR ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR THE INTENDED PURPOSE. Manley Performance Products, Inc. shall not, under any circumstances, be liable for any special, consequential or incidental damages, including but not limited to loss of profits or revenue, loss of other property or equipment, cost of purchased or replacement of goods, or claims by customers of the purchaser, which may arise and/or result from the sale, installation or use of these parts. Installation of parts intended for “off-highway†use could adversely affect the vehicle manufacturer’s warranty coverage. Subject to applicable state law. Some items may not be legal for use in California on pollution controlled vehicles. All weights specified are approximate and subject to manufacturing tolerances. Manley Performance Products, Inc. reserves the right to make changes in design, specifications, materials, or make product changes without incurring liability or obligation with respect to similar product previously manufactured. If technical advice is offered or given in connection with the use of any Products it will be as an accommodation to Buyer and without charge and Seller shall have no responsibilities or liabilities whatsoever for the content or use of such advice.
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