The range of cast downpipes is designed to enhance gas-flow and heat management, increasing efficiency and performance gains. The HJS High-Flow Sports Catalyst provides high quality and strong performance as an aftermarket catalyst. The product is engineered to reduce the density of OEM catalysts while maintaining emission regulations for daily use. Standard OEM catalysts typically have 500-600 cells, while the high flow catalyst reduces this to 200 cells. This results in a freer-flowing catalyst, improving gas-flow and performance. - Cast downpipes designed for improved gas-flow and heat management - HJS High-Flow Sports Catalyst reduces cell density for better flow - Maintains emission regulations for daily use - Freer-flowing catalyst improves performance Specifications: - Pipe Diameter: 76.20 - Fitment Time: 1 to 1.5 hours (including removing OE system) - Race Product: Yes - EMarked: No Vehicle Compatibility: - 2015-2017 Honda / Acura Civic Type R FK2 Turbocharged 2.0 litre i-VTEC (LHD models only) - 2015-2017 Honda / Acura Civic Type R FK2 Turbocharged 2.0 litre i-VTEC (RHD models only)