AIRTEC Motorsport De-Cat Downpipe for Ford Focus RS Mk3
Upgrade the exhaust flow of your Ford Focus RS Mk3 with the AIRTEC Motorsport De-Cat Downpipe (Part No: ATEXHFO6). Designed specifically for the Mk3 Focus RS, this high-flow downpipe significantly improves exhaust efficiency over the restrictive OEM catalyst and downpipe setup, delivering improved turbo response, reduced backpressure, and optimized performance for motorsport and off-road applications.
Why Upgrade?
Unlike previous Focus models (ST225 and Mk2 RS), the Mk3 Focus RS comes with a one-piece catalyst and downpipe assembly featuring restrictive bends and a small 55mm exit bore. The AIRTEC De-Cat Downpipe expands this to a 70mm bore, providing over 50% more exhaust flow, resulting in better turbo efficiency and higher potential power gains.
Key Features
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High-flow 70mm bore – significantly increases exhaust capacity compared to OEM design.
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Motorsport-grade construction – engineered for durability and high-performance use.
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Optimized bends and layout – reduces exhaust restrictions for improved turbo response.
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AIRTEC Motorsport quality – precision-manufactured for direct fitment on Mk3 Focus RS.
Usage & Legal Disclaimer
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This part is intended for off-road or motorsport use only.
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Installation on public roads may cause the vehicle to fail MOT emissions testing or other regulatory inspections.
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Only EC type-approved components are legal for road use.
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The customer is responsible for ensuring compliance with all local laws and regulations regarding emissions and road legality.
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My Performance Parts / TS Parts Ltd assumes no responsibility for the use of this part on public highways.
Alternative Option
For owners seeking improved performance while remaining road-legal, AIRTEC also offers a high-flow sports catalyst version, which balances increased exhaust flow with compliance to UK MOT and emissions regulations.
