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  See more parts for Subaru Forester XT
Select the year of your Subaru Forester XT:
Eagle Rotating Assembly 99.5mm Bore Subaru EJ257 Impreza WRX STI 2004-2017 - 89023995

If you're looking to take your Subaru EJ257 to the next level, the Eagle Competition Rotating Assembly is where it’s at. I’ve had my hands on this setup, and let me tell you, it’s built for serious performance, especially if you’re into racing or running forced induction. This isn't just a bunch of parts slapped together; it’s a well-thought-out assembly that can handle the heat and pressure of nitrous and boosted applications.

Let’s dive into what makes this assembly tick. At the heart of it, you’ve got a robust 3.268" billet 4340 crank. This thing is tough as nails, designed to withstand the rigors of high-performance driving. Pair that with 5.137" H-beam rods that are not just about strength but also help keep your engine balanced and running smooth. The 3/8" ARP 2000 bolts are another highlight—these are the kind of fasteners you want holding your engine together when you’re pushing it to the limit.

Now, the pistons are where it gets really interesting. We’re talking about forged 2618 CP pistons with a 17.1cc inverted dome design and a 99.5mm bore. These babies are made to take a beating and keep on performing. Plus, with plasma-moly file-fit rings, you're looking at better sealing and reduced blow-by, which is crucial when you’re cranking up the boost.

Don’t forget about the King XP rod and main bearings; they’re designed to handle the increased loads that come with high-performance setups. Trust me, you want these in your corner when you’re pushing your engine hard.

This assembly fits a range of Subaru models, including the Impreza WRX STi from 2004 to 2018, the 2019-2021 WRX, and even the Legacy GT and Outback XT from 2005-2006. So if you’ve got a Subaru with an EJ257, this is a solid upgrade to consider.

In summary, the Eagle Rotating Assembly isn’t just another aftermarket part—it’s a serious piece of engineering that can help you unleash the full potential of your Subaru. Whether you're hitting the track or just want a little extra oomph on the street, this setup is worth every penny.

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Vehicle
2004-2005
 Subaru Forester XT
2004-2018
 Subaru Impreza
2005-2006
 Subaru Legacy
2005-2006
 Subaru Outback
2019
 Subaru STI
2019-2021
 Subaru WRX

Eagle Banner

Who is EAGLE?

EAGLE SPECIALTY PRODUCTS, aka EAGLE, has been at the forefront of developing top-quality engine components. The company officially started back in 1992 but has been developing their product for ten years prior.  Since the company started, it has continuously produced some of the market's best engine components and is widely used by engine builders worldwide.

Imitated But Not Duplicated

Due to the company's success, its products have been imitated by other companies even up to the part numbers. But the similarity ends only up to how they look. EAGLE uses the finest materials and has invested in the most state-of-the-art manufacturing machinery for them to create a product that would be able to take any punishment it is subjected to. It is tested to be superior to other brands and considered the best upgrade for OEM counterparts.

No To Shortcuts

The company sets the benchmark on how valves should be properly made. Using their years of experience creating rods, they have already designed over 200 different rods and 180 crankshafts. The company does not allow cost to compromise its material used, manufacturing process, and quality test. 

High-End Quality

All of Eagle's products are made up of high-quality materials. They use certified 4340 Chromoly steel. Using their own special heat treatment process, they are able to create a product that is much stronger compared to other competitors using the same raw material. 

They manufacture their rods using a 2-piece forging process that allows the rod to be stronger. This process orients the "grain" of the metal to the direction of the stress. Eagle uses a state-of-the-art Sunnen Krossgrinding system that allows them to create perfect cuts and bore consistently. 

Purchase EAGLE rods at Vivid Racing

If you want to upgrade your engine rods to something stronger and more reliable, then EAGLE is the brand for you. With their proven design and formula for creating rods, they have been sought after by top racing teams and engine builders. If they trust Eagle, so can you. Visit Vivid Racing and check out the list of parts specifically for your needs.

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