MK3 Focus ST RS 3 Inch Decat Downpipe AIRTEC ATEXHFO3

For MK3 Focus ST (2019+) and RS (2020+) owners chasing fast road or track day gains: this AIRTEC 3 inch decat downpipe replaces the restrictive OEM unit with a full-flow T304 stainless system.

• Direct bolt-on for MK3 Focus ST and MK3 Focus RS - no cutting, no welding, no guesswork
• Compatible with stage 1 and stage 2 ECU maps; essential for safe, effective decat tuning
• Uses OEM flange geometry and gasket locations - fits EA888-derived 2.3L EcoBoost without modification
• Brushed finish, mandrel-bent, UK-made; includes stainless gaskets and high-tensile hardware
• Delivers sharper throttle response, deeper tone and consistent boost pressure - not just louder, but more usable

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