JE Pistons 296349 99.75mm 8.5:1 CR Piston Kit for 2002-2007 Subaru WRX STI EJ257

Vehicle Fitment

• 2002-2007 Subaru WRX STI (EJ257 Block with EJ20 Head, AWD)

Features

• Precision-forged from 2618 T6 high tensile aluminum alloy
• Designed for high-performance and extreme applications
• Inverted dome/dish piston design
• Compression ratio: 8.5:1
• Bore diameter: 99.75 mm (3.927 inches)
• Compression height: 1.209 inches (30.7 mm)
• Piston volume: -26.00 cc
• Average piston weight: 410 grams
• Piston pin diameter: 0.905 inches (23.0 mm)
• Piston pin length: 2.250 inches (57.15 mm)
• Includes JE Pro Seal ring set
• Forged Side Relief (FSR) forging for enhanced strength

Specifications

• Material: 2618 T6 high tensile forged aluminum
• Piston head type: Inverted dome/dish
• Compression ratio: 8.5:1
• Bore diameter: 99.75 mm (3.927 inches)
• Compression height: 1.209 inches (30.7 mm)
• Piston volume: -26.00 cc
• Piston pin diameter: 0.905 inches (23.0 mm)
• Piston pin length: 2.250 inches (57.15 mm)
• Average piston weight: 410 grams
• Ring set included: Yes (JE Pro Seal)
• Forging type: FSR (Forged Side Relief)

Included Components

• 4x JE Pistons 296349
• 4x JE Piston Pins (0.905 inches x 2.250 inches)
• 4x JE Piston Pin Clips
• 1x JE Pro Seal Ring Set

Product Description

The JE Pistons 296349 Piston Kit is engineered for Subaru enthusiasts seeking top-tier performance. Crafted from 2618 T6 high tensile forged aluminum, these pistons are designed to withstand extreme conditions, making them ideal for both street and track applications. The inverted dome/dish design and 8.5:1 compression ratio provide optimal combustion efficiency for the EJ257 engine with an EJ20 head.

With a 99.75 mm bore and 1.209-inch compression height, these pistons are tailored for the 2002-2007 Subaru WRX STI models equipped with the EJ257 block and EJ20 head. The kit includes JE's Pro Seal ring set, ensuring a complete overhaul for your engine. Whether you're building a daily driver or a competition-ready setup, the JE Pistons 296349 Piston Kit offers the reliability and performance you demand.