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

( Brand: Manley ), ( Manufacturer Part Number: 612102C-4 ), ( Part Type: Ring Piston ), ( Fitment Type: Performance/custom )
The 612102c-4 Manley Piston Rings are a high-performance upgrade for your Subaru WRX STI's EJ257 engine. These piston rings are specifically designed for the 99.75mm bore size and 25mm compression height, making them an ideal fit for the 2004 model year and later vehicles.
Manley is renowned for their exceptional quality and durability, and these piston rings are no exception. Each ring is made from a high-quality alloy that provides excellent resistance to wear and tear, ensuring a long lifespan even under the most demanding driving conditions. The rings are also precision-machined to ensure a perfect fit in your engine's cylinders, reducing the risk of leaks and improving combustion efficiency.
The 612102c-4 Manley Piston Rings are available in a 4-ring design, which includes a top ring, second ring, oil control ring, and compression ring. The top ring is designed to seal the combustion chamber, while the second ring helps to prevent side-to-side movement of the piston. The oil control ring helps to keep engine oil in the crankcase, and the compression ring aids in sealing the combustion chamber and preventing blow-by.
These piston rings are also dish-shaped, which means they have a concave profile. This design helps to reduce friction between the piston and the cylinder wall, reducing heat buildup and improving engine performance.
Overall, the 612102c-4 Manley Piston Rings are a great upgrade for your Subaru WRX STI's EJ257 engine. They provide excellent sealing and durability, reduce friction, and can help to improve engine performance and efficiency. Whether you're a daily driver or a track enthusiast, these piston rings are a great investment for your Subaru.
Pros of buying 612102c-4 Manley Piston Rings for Subaru WRX STI EJ257:1. High-quality materials: Manley is a renowned brand known for its high-quality piston rings made from top-tier materials.
2. Precision manufacturing: Manley uses advanced technology and precision machinery to manufacture piston rings, ensuring a perfect fit for each cylinder.
3. Improved engine performance: Manley piston rings help reduce engine friction, improve sealing, and prevent oil leakage, resulting in better engine efficiency and performance.
4. Durability: The rings are designed to withstand high temperatures and pressures, providing long-lasting performance and reducing the need for frequent replacements.
Cons of buying 612102c-4 Manley Piston Rings for Subaru WRX STI EJ257:1. Cost: Manley piston rings are generally more expensive than other brands due to the high-quality materials and manufacturing processes used.
2. Compatibility: Ensure the rings are compatible with your specific engine model and configuration, as incorrect installation can cause damage to the engine.
3. Installation complexity: Installing piston rings can be a complex process and may require specialized tools and knowledge. It is highly recommended to have the rings installed by a professional mechanic or engine builder.
In conclusion, while Manley piston rings may be more expensive, they provide superior quality and performance that can improve the longevity and efficiency of your engine. However, it is essential to consider the costs and installation complexity before making a purchase. If you are not comfortable with the installation process, it is best to hire a professional to ensure proper installation and avoid potential engine damage. Overall, the benefits of using high-quality piston rings like Manley's can outweigh the costs, especially for performance-oriented applications.
Purchase from map to receive aggressive pricing and retain your manufacturers warranty.
Offset wrist pin design is utilized for quiet start-ups. All pistons come with Molly coated skirts. Please see the for information regarding shipping costs and available methods.
25mm bore 9.
Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique one texturing manufacturing method that assures maximum horsepower. Manley piston rings for 04 Subaru Wrx Sti EJ257 99.