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Fabspeed Porsche 911 Carrera Sport Cat (1976-1989) Accessories & Apparel watch our video about HJSThis high flow 300 Cell Catalytic Converter is a direct bolt on replacement for the heavy & restrictive factory catalytic converter. Perfect for the 911 Carrera owner looking to make his vehicle emissions compliant and slightly enhance the exhaust sound. SOUND: This high flow cat will give your Carrera a slight increase in exhaust volume and tone. Provided is our easy to use INSTALL GUIDE. FEATURES: Fits all Porsche 911 Carrera vehicles 1976 1989 Less