The ST is the sports-oriented line, aimed at select vehicles produced by Ford. Performance can be enhanced with a combination of Milltek parts, including this Resonated GPF/OPF Delete Pipe. The GPF/OPF functions almost as a secondary catalyst, and this product provides the option to remove it, similar to a Decat system. This bypass deletes the GPF/OPF from the exhaust system to improve performance. Note: GPF/OPF Bypass software is required on the vehicle's ECU in most cases. - Removes the GPF/OPF from the exhaust system - Designed to improve performance - Resonated design for specific sound characteristics Specifications: - Pipe Diameter: 70.00 - Race Product: Yes - EMarked: No Kit comes with: - F5144: Adapter to OE Cat Back System 60 I.D. to 70 I.D. 150 long - MSFD247: Adapter Pipe - MSFD247 - MSFD248: GPF/OPF Bypass Pipe (Resonated) - MSFD248 Vehicle Compatibility: - Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS (Post Sept 2020 Models Only) 2020 and Later - Ford Fiesta Mk8 ST 1.5 EcoBoost 200PS (Pre Sept 2020 Models Only) 2018-2020 - Ford Puma ST 1.5 200ps EcoBoost (OPF/GPF Equipped) 2020 and Later