fits model: Evo. year: 2003–2006.

( Brand: Manley Performance ), ( Manufacturer Part Number: 608010C-4 ), ( Part Type: Ring Piston Bolt ), ( Fitment Type: Performance/custom )
The 608010C-4 Manley Piston Rings are a high-performance upgrade for your 4G63T engine, specifically designed for Subaru Impreza WRX and STI models from 2003 to 2006 (Evo 8 and 9). These piston rings are manufactured to provide superior sealing and durability, ensuring optimal engine performance and longevity.
The 608010C-4 set includes four 86mm compression rings, two oil control rings, and two top rings. The compression rings are made from Manley's proprietary alloy, providing exceptional strength and wear resistance. The rings' unique cross-sectional design and precision machining ensure a tight gas seal, reducing blow-by and improving combustion efficiency.
The oil control rings are designed to help manage oil consumption, prevent oil from entering the combustion chamber, and maintain proper lubrication in the cylinder walls. The top rings, also known as the skirts, are engineered to minimize piston-to-wall contact, reducing friction and promoting smooth engine operation.
Manley piston rings are known for their superior quality and precision. They are heat-treated and coated to resist corrosion and wear, ensuring reliable performance even under high-stress conditions. The rings are also designed to fit perfectly in your 4G63T engine, ensuring a seamless installation process.
In summary, the 608010C-4 Manley Piston Rings are an excellent upgrade for your Subaru's engine. They provide superior sealing, reduce blow-by, improve combustion efficiency, and promote smooth engine operation. With their high-quality materials, precise machining, and perfect fit, these piston rings are a solid investment in your Subaru's performance and longevity.
Pros of buying 608010C-4 Manley Piston Rings for 4G63T engines (EVO 8-9):1. High-quality materials: Manley piston rings are made of high-quality materials, such as nickel-chromium alloy, which ensures durability and resistance to wear and tear.
2. Precise manufacture: The rings are manufactured with precise tolerances to ensure a perfect seal, reducing the risk of oil leaks and enhancing engine performance.
3. Improved engine performance: Manley piston rings can improve engine performance by reducing friction and heat, which can lead to better fuel efficiency and horsepower.
4. Suitable for high-performance applications: The 608010C-4 Manley piston rings are suitable for high-performance applications, making them an excellent choice for modified or tuned engines.
5. Compatibility: These piston rings are specifically designed for 4G63T engines and are compatible with EVO 8-9 models, ensuring a seamless fit and installation.
Cons of buying 608010C-4 Manley Piston Rings for 4G63T engines (EVO 8-9):1. Higher price point: Manley piston rings are generally more expensive than other brands, which may be a deterrent for some buyers.
2. Potential for installation issues: Proper installation is crucial for piston rings to function effectively. If not installed correctly, the rings may not seal properly, leading to issues such as oil leaks or engine performance problems.
3. Limited availability: Manley piston rings may not be widely available in local auto parts stores, requiring buyers to order them online or from specialized performance parts retailers.
Conclusion:If you're looking for high-quality, durable piston rings for your 4G63T engine (EVO 8-9), the 608010C-4 Manley piston rings are an excellent choice. Although they come with a higher price tag, the improved engine performance, durability, and compatibility with high-performance applications make them worth the investment. Just ensure that you properly install the rings to avoid any potential issues.
Recommendation:If you're unsure about the installation process, consider hiring a professional mechanic to install the piston rings for you. While it will add to the overall cost, the peace of mind and guaranteed proper installation can save you from potential engine issues down the line. Additionally, make sure to source the piston rings from a reputable retailer to ensure authenticity and quality.
All pistons come with Molly coated skirts.
Manley piston w rings for Evo bolt 4G63T 86mm over bore 8.
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. Purchase from map to receive aggressive pricing and retain your manufacturers warranty.
5:1 Manley pistons are machined of high strength 2618 material. Please see the for information regarding shipping costs and available methods.