fits model: Wrx, Sti, Turbo, Std. make: Subaru.

( Brand: Cp Carrillo ), ( Manufacturer Part Number: SC7415 ), ( Part Type: Piston ), ( Fitment Type: Performance/custom ), ( Country/region Of Manufacture: United States )
The 99.5mm pistons for Subaru EJ257 WRX STI turbo standard are high-performance upgrades designed to enhance the engine's power output and reliability. These pistons, specifically the SC7415 Carrillo model, are crafted from forged 2618-T6 aluminum alloy, ensuring superior strength and durability.
The piston's top ring land is designed with a unique crown shape, which reduces piston-to-wall contact, minimizing friction and heat generation. This design also helps to prevent piston ring groove distortion, extending the piston's lifespan and reducing the likelihood of engine failure.
The piston skirts are honed to an ultra-smooth finish, reducing drag and promoting efficient combustion. The piston's second compression ring is made of chrome molybdenum alloy, ensuring excellent sealing and preventing oil consumption.
The SC7415 Carrillo pistons are further enhanced with Carrillo's proprietary high-tensile steel wrist pins, which provide increased strength and durability. The wrist pins are also fitted with phenolic-coated bushings, reducing wear and providing a smooth, reliable connection between the piston and connecting rod.
In summary, the 99.5mm pistons for Subaru EJ257 WRX STI turbo standard, specifically the SC7415 Carrillo model, are a high-quality, performance-focused upgrade. They offer superior strength, reduced friction, and improved sealing, making them an excellent choice for enthusiasts looking to boost their engine's performance and reliability.
Pros of buying 99.5mm pistons for Subaru EJ257 WRX STI turbo (standard 10.0 SC7415 Carrillo):1. Increased compression ratio: The larger pistons allow for a higher compression ratio, which can enhance engine performance and efficiency.
2. Improved power output: With a higher compression ratio and appropriate fueling, the engine can produce more power.
3. Enhanced engine durability: The use of Carrillo rods ensures improved engine strength and durability, reducing the risk of failures due to high power output.
Cons of buying 99.5mm pistons for Subaru EJ257 WRX STI turbo (standard 10.0 SC7415 Carrillo):1. Potential for engine knock: Increasing the compression ratio can lead to engine knock if the appropriate fueling, ignition timing, and other modifications are not made.
2. Increased fuel consumption: The engine may consume more fuel due to the higher compression ratio and increased power output.
3. Potential for reduced engine life: If not properly maintained or if the engine is pushed beyond its limits, the increased power output and stress on the engine components can lead to reduced engine life.
Conclusion:Buying 99.5mm pistons with Carrillo rods for your Subaru EJ257 WRX STI turbo can provide enhanced performance and durability, but it is crucial to consider the potential drawbacks. Properly tuning the engine and ensuring it is pushed within its limits will help minimize the risks of engine knock, increased fuel consumption, and reduced engine life. If you are considering this modification, it is recommended to consult with a professional mechanic or tuner to ensure it is done correctly and safely.
Locks are not included for this kit. 5mm bore with 10.
Sc7415 Subaru Sti Wrx Cp pistons forged 2618 for the EJ257 are designed maximum performance and horsepower.
0:1, ka24e is 8.
Buyers with APO FPO and PO.
5mm Std For quickest response.
2mm gasket shipping information free ups ground in the contiguous 48 states. Each piston is designed to withstand the intense heat and pressures of high compression normally aspirated boost Turbocharged or supercharged motors.