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 is a high-quality, high-performing aftermarket catalyst. This product reduces 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. - Enhances gas-flow and heat management - Reduces catalyst cell density to 200 cells for improved flow - Maintains emission regulations for daily usage Specifications: - Pipe Diameter: 76.20 - Fitment Time: 2.5 to 3.5 hours (including removing OE system) - Race Product: Yes - EMarked: No Kit comes with: - GPF/OPF Bypass Pipe (Non-Resonated) - MSMZ104REP - Adapter to Milltek Sport GPF/OPF Back System - MSMZ106 - Large Bore Downpipe with 200CPSI Cat - MSMZ122 - Connecting Pipe - MSMZ123 Vehicle Compatibility: - 2019 and later Mercedes A-Class A35 AMG 2.0 Turbo (Saloon/Sedan Only - OPF/GPF Models) - 2019 and later Mercedes A-Class A35 AMG 2.0 Turbo (W177 Hatch Only OPF/GPF Models)