fits model: Wrx, Sti. make: Subaru. year: 2004.

( Brand: Manley ), ( Manufacturer Part Number: 622105C-4 ), ( Part Type: Ring Piston ), ( Fitment Type: Performance/custom )
The Manley 622105c-4 Piston Rings are specifically designed for the Subaru WRX STI with the EJ257 engine, which has undergone a 83mm stroke and a 100mm bore, commonly known as a 100mm stroker. These piston rings are made to deliver exceptional performance and durability, making them an ideal choice for high-performance applications.
The Manley 622105c-4 Piston Rings are manufactured using top-tier materials and advanced technology. These rings feature a 0.040-inch second ring gap, which is optimal for high-compression and high-horsepower engines. The rings are also precision-machined to ensure a perfect fit and seal in the engine cylinder.
The Manley 622105c-4 Piston Rings are made with a nitrided ring groove, which provides increased strength and durability. This nitriding process also helps to reduce wear and tear, ensuring that the rings last longer and maintain their seal over time. The rings are also coated with a high-temperature oil film, which helps to reduce friction and ensure smooth operation.
The Manley 622105c-4 Piston Rings are designed to meet the demands of high-performance applications. They are engineered to withstand the extreme pressures and temperatures that are common in high-horsepower engines. These rings are also resistant to detonation and pre-ignition, which can help to prevent engine damage and improve overall performance.
In summary, the Manley 622105c-4 Piston Rings are a high-quality and reliable option for Subaru WRX STI EJ257 engines that have undergone a 100mm stroker upgrade. These rings are made with top-tier materials and advanced technology, and feature a nitrided ring groove and high-temperature oil film coating. They are designed to withstand the demands of high-performance applications and are engineered to improve engine performance, reduce wear and tear, and prevent engine damage.
Pros of buying 622105c-4 Manley piston rings for your Subaru WRX STI EJ257 83mm stroker engine:1. High quality: Manley is a renowned brand known for producing high-performance piston rings. The 622105c-4 rings are made from top-notch materials, ensuring durability and reliability.
2. Designed for high-performance applications: These piston rings are specifically designed for high-performance engines like your 83mm stroker, which is a significant upgrade from the stock engine.
3. Enhanced engine performance: By using these piston rings, you can expect improved compression, reduced ring groove distortion, and reduced oil consumption. This will ultimately lead to improved engine performance and fuel efficiency.
4. Suitable for high-power applications: The 622105c-4 Manley piston rings are suitable for high-power applications, making them an excellent choice for those planning to modify their Subaru WRX STI for more power.
Cons of buying 622105c-4 Manley piston rings:1. High cost: Manley piston rings are generally more expensive than OEM or aftermarket alternatives. This may be a significant investment, but considering the engine's performance benefits, it could be a worthwhile investment for enthusiasts.
2. Requires technical knowledge: Installing piston rings is a complex task that requires technical knowledge and experience. If you're not comfortable or lack the necessary skills, it may be wise to hire a professional mechanic to ensure a proper installation.
3. Potential for engine damage: Improper installation or use of piston rings not suitable for your engine could lead to engine damage. Make sure to follow the manufacturer's instructions and consult a professional mechanic if needed.
Conclusion and recommendation:If you're looking to upgrade your Subaru WRX STI EJ257 83mm stroker engine to improve performance and fuel efficiency, the 622105c-4 Manley piston rings are a high-quality option. While they are expensive and require technical knowledge for installation, the performance benefits and durability make them a worthwhile investment for serious enthusiasts. If you're unsure or lack the necessary skills, it may be best to consult a professional mechanic to ensure a proper installation and avoid potential engine damage.
Each design is lightweight yet robust enough to deliver long service life. Manley piston rings for 04 Subaru Wrx Sti EJ257 83mm stroker 100mm bore 9.
8:1 Manley pistons are machined of high strength 2618 material.
Offset wrist pin design is utilized for quiet start-ups.
Purchase from map to receive aggressive pricing and retain your manufacturers warranty.
Perfect ring groove to skirt squareness is achieved through our unique one texturing manufacturing method that assures maximum horsepower.
All pistons come with Molly coated skirts.
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