The range of cast downpipes is designed to enhance gas-flow and heat management, increasing efficiency and performance. The standard OEM catalyst typically uses 500-600 cells, while the race 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 - Race catalyst features 200 cells compared to OEM 500-600 cells - Freer-flowing catalyst enhances performance Specifications: - Pipe Diameter: 60.30 - Race Product: Yes - EMarked: No Kit comes with: - Downpipe with High Flow Sports Cat - MSFD235 - Connecting Pipe to OE Cat Back - MSFD237 Vehicle Compatibility: - 2017-2019 Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (Non-OPF/GPF Models Only)