KORSH Catted Downpipe

KORSH Catted Downpipe – Subaru WRX / STI (GD/GG)

The KORSH Premium Catted Downpipe is engineered specifically for the Subaru WRX and STI (2001–2007). This high-performance exhaust component features a full 76mm (3.0") bore, designed to significantly improve exhaust flow and turbo spool-up while maintaining emissions compliance through its integrated high-flow catalytic converter.

By utilising a high-quality cast bellmouth head and a true 3-inch (76mm) diameter throughout, this downpipe allows for superior flow characteristics compared to traditional welded designs. It is the ideal upgrade for enthusiasts seeking improved throttle response and increased power delivery without the excessive odour or environmental impact of a catless system.

Key Features

• Full 76mm (3.0") Bore: Maximises exhaust gas volume and velocity while maintaining a high-performance 3-inch profile.
• Cast Bellmouth Head: Optimised internal geometry for maximum exhaust flow and reduced turbulence exiting the turbocharger.
• High-Flow 200 Cell Cat: Integrated metallic catalytic converter ensures better flow than OEM units while remaining emissions compliant.
• Mandrel-Bent Tubing: Precision-engineered 76mm mandrel bends maintain a consistent diameter throughout the pipe, eliminating restrictive bottlenecks.
• Global Compatibility: Expertly designed to suit both Right-Hand Drive (RHD) and Left-Hand Drive (LHD) vehicles.
• Direct Bolt-On Fitment: Engineered as a straightforward replacement for the factory downpipe, utilising original mounting points.

Specifications

• Material: High-grade Stainless Steel
• Diameter: 76mm (3.0")
• Catalytic Converter: 200 CPSI High-Flow
• Design: Cast Bellmouth with Mandrel-Bent Piping
• Fitment: RHD and LHD Compatible

What’s Included

• 1 x KORSH 76mm Catted Downpipe
• Necessary Gaskets and Hardware for Installation