fits model: Sti. make: Subaru.

( Brand: Subaru Tecnica International ), ( Manufacturer Part Number: 12006AE550 ), ( Part Type: Piston ), ( Fitment Type: Direct Replacement ), ( Bore Size: 99.5 )
The 12006AE550 Subaru STI EJ257 RA Pistons from Tecnica International are a high-performance upgrade for your Subaru's engine. These pistons are designed specifically for the EJ257 engine, which is found in various Subaru models including the STI.
The pistons measure 99.5mm in diameter, which is a size often used for performance applications to increase power and torque. They are made from forged 2618 alloy, a material known for its strength and durability. This ensures that the pistons can withstand the increased stresses and pressures that come with high-performance driving.
The pistons also feature a unique, asymmetrical design. The crown is dish-shaped, which helps to reduce piston-to-wall contact and minimize friction. This results in improved engine efficiency and reduced heat build-up. The skirt is also designed to minimize oil consumption and promote better ring sealing.
The Tecnica International 12006AE550 pistons also come with a honing process that ensures a precise fit in the engine cylinder. This ensures proper compression and reduces the risk of engine knocking and detonation.
In addition, these pistons are designed to work well with aftermarket components, such as performance camshafts, intakes, and exhaust systems. This makes them a great choice for those looking to build a high-performance Subaru engine.
Overall, the 12006AE550 Subaru STI EJ257 RA Pistons from Tecnica International are a high-quality, high-performance upgrade for your Subaru engine. They are made from strong materials, have an asymmetrical design for improved efficiency, and are honed for a precise fit. These pistons are a great choice for anyone looking to boost the power and performance of their Subaru.
Pros of buying 12006AE550 Subaru STI EJ257 RA pistons with 99.5mm from Tecnica International:1. Upgrade potential: These pistons can help improve your engine's performance by increasing compression ratio, allowing for more efficient combustion and potentially increased power output.
2. High-quality material: Tecnica International is known for using high-quality materials in their products, which can improve durability and reliability.
3. Precision manufacturing: The pistons are precision-machined to ensure a perfect fit in your engine and minimize wear and tear.
Cons of buying 12006AE550 Subaru STI EJ257 RA pistons with 99.5mm from Tecnica International:1. Cost: Upgrading your engine with new pistons can be expensive, and these pistons are no exception.
2. Installation difficulty: Installing new pistons can be a complex and time-consuming process, requiring specialized tools and knowledge.
3. Potential for engine damage: If not installed correctly, new pistons can cause damage to your engine, such as cylinder wall scoring or engine block cracking.
Conclusion: If you're looking to improve your Subaru STI's performance and are willing to invest the time and money, upgrading to Tecnica International's 12006AE550 EJ257 RA pistons with 99.5mm can be a worthwhile investment. However, it's important to ensure that you have the necessary tools and knowledge to install the pistons correctly, or hire a professional to do so to avoid potential engine damage.
Recommendation: If you're considering upgrading your Subaru STI's pistons, we recommend doing your research and speaking with a knowledgeable mechanic or engine specialist to ensure that the upgrade is right for your car and that it's installed correctly. Additionally, be prepared to invest a significant amount of time and money into the upgrade process.
The pistons are brand new they were removed to be replaced with forged piston ra motor build. These ra pistons come off an oem ej25 Sti motor.