CP Pistons and Ring Set for Subaru EJ257 WRX STi – Bore 3.93 inches, Size 0.25mm, Compression Ratio 8.2:1

CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (99.75mm) - Size (0.25mm) - CR (8.2)

Upgrade your Subaru WRX STi with the CP Pistons and Ring Set designed specifically for the EJ257 engine. This high-quality set features pistons with a bore diameter of 3.93 inches, ensuring precise fitment and optimal performance. The set includes rings tailored to match the pistons, providing excellent sealing and durability for demanding driving conditions. Crafted by CP Pistons, these components are engineered to improve engine efficiency and longevity. Suitable for various Subaru Impreza models from 2004 to 2012, this set is an ideal choice for enthusiasts looking to enhance their vehicle's performance or rebuild their engine with reliable parts. The pistons' compression ratio of 8.2:1 strikes a balance between power and fuel economy, making it versatile for street and performance applications. This product is not CARB-approved but requires acknowledgment of this status during installation. It complies with air freight regulations and is available for quick shipment, ensuring timely delivery for your project. Trust CP Pistons for quality and consistency in your automotive rebuild or upgrade. Proper installation and compatibility checks are recommended to maximize benefits and engine reliability over time.

Features:

• Piston bore diameter: 3.93 inches (99.75mm) for precise fitment

• Ring set included: designed for optimal sealing and durability

• Compression ratio: 8.2:1 delivering a balanced performance

• Engine compatibility: fits Subaru Impreza models from 2004 to 2012 with EJ257 engine

• Construction: high-quality materials engineered for reliability and performance

Fitment:
2004 Subaru Impreza WRX STI
2005 Subaru Impreza WRX STI
2006 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2008 Subaru Impreza WRX STI
2009 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI Special Edition
2011 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI Limited
2012 Subaru Impreza WRX STI
2012 Subaru Impreza WRX STI Limited

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1