fits model: Wrx. make: Subaru. year: 2015–2021.

( Brand: Je Pistons ), ( Manufacturer Part Number: 359190 ), ( Type: Piston ), ( Items Included: Wrist Pin, Piston ), ( Piston Diameter: 3.4 In )
Introducing the JE Pistons 359190 Forged 86.50mm Piston, specifically engineered for the Subaru WRX (2015-2021) with the FA20 engine. This high-performance piston is a testament to JE Pistons' commitment to delivering top-tier engine components that enhance power, reliability, and efficiency.
The JE Pistons 359190 Forged 86.50mm Piston features a forged construction, which provides superior strength and durability compared to its cast counterparts. The forged material allows for a more uniform grain structure, resulting in increased robustness and longevity. This piston is designed with a 86.50mm bore, ensuring a perfect fit for your Subaru engine.
One of the standout features of this piston is its unique design. It boasts a 12:1 compression ratio, providing a significant boost in power output. The piston crown is dish-shaped, which helps reduce piston-to-wall contact and promotes efficient combustion, while the underside features a unique quad-chamfer design that improves ring seal and reduces friction.
Additionally, this JE Pistons 359190 Forged 86.50mm Piston comes with a 2.150" wrist pin, which ensures optimal strength and reliability. The piston skirt features a 1mm oil ring groove, which helps reduce crankcase pressure and improve oil control.
In conclusion, the JE Pistons 359190 Forged 86.50mm Piston is an excellent choice for Subaru WRX (2015-2021) owners looking to enhance their engine's performance and reliability. Its forged construction, 12:1 compression ratio, and unique design features make it a standout choice in the world of high-performance pistons.
Pros of buying Je Pistons 359190 forged 86.50mm for Subaru 15-21 WRX FA20:1. Forged construction: Forged pistons are stronger and more durable than cast pistons, which makes them ideal for high-performance applications.
2. Increased power and torque: Upgrading to forged pistons can increase the power and torque output of your engine, leading to improved performance.
3. Improved engine reliability: Forged pistons are less likely to fail under high loads, which can improve the overall reliability of your engine.
4. Better heat dissipation: Forged pistons have a better heat dissipation capability than cast pistons, which can help to reduce engine temperatures and improve performance.
Cons of buying Je Pistons 359190 forged 86.50mm for Subaru 15-21 WRX FA20:1. Higher cost: Forged pistons are generally more expensive than cast pistons, which can be a disadvantage for budget-conscious buyers.
2. Requires additional engine work: Installing forged pistons may require additional engine work, such as upgrading the connecting rods and engine bearings, which can add to the overall cost.
3. Can be more difficult to install: Forged pistons can be more difficult to install than cast pistons, as they may require special tools and techniques.
4. Potential for engine damage: If not installed correctly, forged pistons can cause engine damage, such as scuffing the cylinder walls or damaging the engine bearings.
Conclusion: If you are looking to improve the performance and reliability of your Subaru 15-21 WRX FA20 engine, upgrading to forged pistons, such as the Je Pistons 359190, can be a good investment. However, it is important to note that forged pistons are more expensive and may require additional engine work to install correctly. If you are not experienced in engine work, it is recommended to have a professional install the pistons to ensure proper installation and avoid potential engine damage.
Recommendation: If you are considering upgrading to forged pistons, it is recommended to research the different options available and choose a reputable manufacturer, such as Je Pistons, that has a proven track record of producing high-quality pistons. Additionally, it is important to ensure that the pistons are properly sized and matched to your engine and that any additional engine work required is completed by a qualified mechanic. By following these recommendations, you can maximize the benefits of upgrading to forged pistons while minimizing the risks.
They are used but in very good condition. Selling a set of used JE 86.50mm forged Pistons for 15-21 Subaru WRX with the FA20 engine. Pistons, Wrist pins and rings are included but Recommend getting a new set of. Wrist pin clips will also be needed.
As you can see in the pictures there are some signs of use on Pistons.