Subaru Impreza WRX STI 2006-2007 secondary cat replacement SSUC006

Direct-fit Scorpion SSUC006 secondary catalyst replacement for UK-spec 2006-2007 Subaru Impreza 2.5 WRX and STI models only.

• 63.5mm (2.5 inch) pipe diameter for improved exhaust flow and throttle response
• Designed as a track-day or fast-road upgrade - not for road use
• Fits OEM and Scorpion exhaust systems without modification
• Removes restrictive factory secondary cat; ECU remap required to avoid check engine light

Warning: For motorsport use only. Not UK road legal. Does not comply with emissions regulations.