HKS 31013-BF001 Sport Cat-Back Exhaust 2002-2007 Subaru WRX/STI 2.0L/2.5L AWD

Vehicle Fitment

• 2002-2007 Subaru Impreza WRX (GDA/GGA, 2.0L/2.5L Turbocharged H4, AWD)
• 2004-2007 Subaru Impreza WRX STI (GDB, 2.5L Turbocharged H4, AWD)

Features

• 75mm (2.95") mandrel-bent piping for enhanced exhaust flow
• 106mm (4.17") polished stainless steel tip for a refined appearance
• Constructed from durable S409 mild steel with black corrosion-resistant coating
• Designed to increase horsepower and torque by reducing backpressure
• Minimizes turbo lag for improved throttle response
• Produces a deep, sporty exhaust note without excessive noise
• Direct bolt-on installation utilizing OEM hangers
• Includes all necessary gaskets and hardware for installation

Specifications

• Material: S409 mild steel piping with polished stainless steel tip
• Piping Diameter: 75mm (2.95")
• Tip Diameter: 106mm (4.17")
• Configuration: Single exit
• Weight: Approximately 16.4 kg
• Noise Level: Moderate, suitable for daily driving
• Clearance: Maintains OEM ground clearance

Included Components

• 1x HKS Sport Cat-Back Exhaust System (Part No. 31013-BF001)
• 1x Polished Stainless Steel Muffler Tip
• Gaskets and Installation Hardware

Product Description

The HKS 31013-BF001 Sport Cat-Back Exhaust System is engineered to enhance the performance and sound of your 2002-2007 Subaru WRX or 2004-2007 WRX STI. Featuring 75mm mandrel-bent piping and a 106mm polished stainless steel tip, this system improves exhaust flow, resulting in increased horsepower, reduced turbo lag, and a more responsive throttle.

Constructed from durable S409 mild steel with a black corrosion-resistant coating, the exhaust system is designed for longevity and resilience against the elements. The polished stainless steel tip adds a refined aesthetic touch, while the exhaust note remains deep and sporty without being overly loud, making it ideal for daily driving.

Installation is straightforward, utilizing OEM hangers for a direct bolt-on fit. All necessary gaskets and hardware are included, ensuring a hassle-free setup. With its balance of performance, sound, and style, the HKS Sport Cat-Back Exhaust System is a valuable upgrade for enthusiasts seeking to enhance their Subaru's driving experience.