CP Pistons SC7400-4 Forged Piston Set for 2002-2005 Subaru WRX EJ20 2.0L Turbo

Vehicle Fitment

• 2002-2005 Subaru Impreza WRX - EJ20 2.0L Turbo (USDM)
• 2005 Saab 9-2X Aero - EJ20 2.0L Turbo (USDM)

Fitment Notes

• Compression ratio: 8.5:1
• Bore size: 92.5 mm (+0.5 mm over OEM)
• Not CARB legal; not for sale in California or CARB-regulated states

Features

• High-strength 2618 aluminum forged construction for enhanced durability
• Precision CNC-machined and balanced to +/- 1 gram for optimal performance
• Accumulator groove included to improve oil control
• Double pin oilers, force-fed from oil ring, for improved lubrication
• Pick lock grooves for easy lock removal during assembly
• Designed for oversized valves and high-lift camshafts
• Dish-style piston design with four valve reliefs
• Wrist pins included at no extra cost for complete installation

Specifications

• Bore: 92.5 mm (+0.5 mm over OEM)
• Compression Ratio: 8.5:1
• Compression Height: 32.639 mm
• Rod Length: 130.5 mm
• Pin Diameter: 23 mm
• Piston Material: 2618 Forged Aluminum
• Ring Sizes: 1.0 mm, 1.2 mm, 2.8 mm
• Position: All cylinders (set of 4)

Included Components

• 4x SC7400-4 Pistons & Ring Sets
• 4x Wrist Pins
• 8x Circlips

Product Description

The CP Pistons SC7400-4 is a high-performance forged piston and ring set designed specifically for the 2002-2005 Subaru Impreza WRX and 2005 Saab 9-2X Aero, both equipped with the EJ20 2.0L Turbo engine. This set includes four pistons, wrist pins, and circlips, all crafted from high-strength 2618 aluminum forgings and precision CNC-machined to ensure optimal balance and performance. The piston's 92.5 mm bore and 8.5:1 compression ratio make it ideal for applications requiring enhanced durability and power output.

Engineered with performance enthusiasts in mind, the SC7400-4 piston is designed to accommodate oversized valves and high-lift camshafts, ensuring compatibility with modified engine setups. The inclusion of accumulator grooves, double pin oilers, and pick lock grooves enhances oil control and simplifies assembly, respectively. Additionally, the wrist pins are included at no extra cost, providing a complete solution for engine rebuilds or upgrades.

Please note that this piston set is not compatible with 2025 models or newer and is not CARB legal, meaning it cannot be sold in California or other CARB-regulated states. Ensure your vehicle meets the specified fitment criteria before purchasing.