fits model: Evo.

( Brand: Hks ), ( Manufacturer Part Number: 21004-AM001 )
The HKS 2.3L Evo 8-9 4G63 Stroker Kit (21004-AM001) is an exceptional upgrade for those looking to enhance the performance of their Subaru Impreza WRX or STI. This kit is specifically designed for the 2.3L engine found in the Evo 8 and Evo 9 models, and it provides a significant boost in power and torque.
The heart of this stroker kit is the forged 86mm pistons and H-beam connecting rods. These high-quality components allow for a larger stroke, resulting in increased displacement and, consequently, more power. The pistons are also coated with a special Skirting Oil Coating, which reduces friction and improves engine efficiency.
The kit also includes a set of high-performance HKS camshafts. These cams feature a more aggressive cam profile, which allows for improved valve timing and increased airflow into the engine. This results in a significant increase in power and torque, especially in the mid-range and top-end.
The HKS 2.3L Evo 8-9 4G63 Stroker Kit also includes a set of high-flow intake and exhaust components. The intake system features a larger diameter air filter and a smooth-bore intake manifold, which allows for an increased volume of air to be drawn into the engine. The exhaust system, on the other hand, features a high-flow catalytic converter and a straight-through muffler, which reduces back pressure and allows for improved exhaust flow.
This kit is also designed with durability in mind. It includes a high-strength crankshaft, which is capable of handling the increased power and torque. The kit also includes a set of high-temperature gaskets and seals, which ensure a tight seal between the engine components and prevent oil leaks.
In summary, the HKS 2.3L Evo 8-9 4G63 Stroker Kit (21004-AM001) is an excellent upgrade for those looking to enhance the performance of their Evo 8 or Evo 9. Its high-quality components, including forged pistons, H-beam connecting rods, and high-performance camshafts, allow for a significant increase in power and torque. The kit is also designed with durability in mind, featuring a high-strength crankshaft and high-temperature gaskets. Overall, this kit is a great choice for anyone looking to take their Evo to the next level.
Pros of buying a 21004-AM001 HKS 2.3L Evo 8-9 4G63 Stroker Kit:1. Increased power and performance: The kit includes a high-performance crankshaft, pistons, and other components that can help increase the engine's displacement and output, resulting in more power and torque.
2. Improved reliability and durability: The use of high-quality materials and components in the kit can help improve the engine's reliability and durability, allowing it to withstand higher loads and stresses.
3. Enhanced responsiveness: The kit includes a high-performance camshaft that can help improve the engine's response and make it more responsive to throttle inputs.
4. Customization options: The kit can be customized to fit specific engine builds and applications, allowing users to tailor the kit to their specific needs and preferences.
Cons of buying a 21004-AM001 HKS 2.3L Evo 8-9 4G63 Stroker Kit:1. High cost: The kit is relatively expensive, which may make it out of reach for some budget-conscious users.
2. Requires specialized knowledge and skills: Installing the kit requires specialized knowledge and skills, which may require users to hire a professional or spend time learning how to do it themselves.
3. May require additional modifications: The kit may require additional modifications to the engine and vehicle to work properly, such as upgraded fuel delivery and exhaust systems.
4. Possible engine compatibility issues: The kit may not be compatible with all Evo 8-9 engines or may require additional modifications to make it work properly.
Conclusion:The 21004-AM001 HKS 2.3L Evo 8-9 4G63 Stroker Kit is an excellent option for users looking to increase the power and performance of their Evo 8-9 engine. The kit's high-quality materials and components can help improve the engine's reliability and durability, and the customization options allow users to tailor the kit to their specific needs. However, the kit's high cost and the requirement for specialized knowledge and skills may make it out of reach for some users. Users should carefully consider their budget and technical abilities before deciding to purchase the kit.
Recommendation:If you are looking to increase the power and performance of your Evo 8-9 engine, the 21004-AM001 HKS 2.3L Stroker Kit is an excellent option. However, before making a purchase, make sure you have the necessary knowledge and skills to install the kit or have a professional install it for you. Additionally, consider the potential cost of any additional modifications required to make the kit work properly and ensure that it is compatible with your specific engine and vehicle. With careful planning and consideration, the 21004-AM001 HKS Stroker Kit can help you achieve the performance you've been looking for.
The Hks am001 3l Evo stroker kit is a great way to improve your hp, qt, and overall strength of motor. This kit is recommend for race Evo's. Includes pistons, rings, crank, rods, etc.