---2.75" Bore throughout with quad 4" tailpipes ---Turbo back decat system removing all exhaust restrictions ---A complete upgrade kit to to a full stainless steel system ---Manufactured from Mandrel bent T304 grade stainless steel ---Engineered to improve throttle response and increased power and torque across the entire RPM range Fitment: ---Subaru Impreza 2.5l WRX STi 2008-2014 hatchback models.
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