ZERONINE DESIGN performance air filter for the Mk3 Focus RS/ST is a high-quality replacement option for owners that demand the maximum performance increase, perfect fitment and an enhanced induction noise, whilst retaining their original OE air intake system.
By using a lightly-oiled synthetic cotton gauze material that we call Hyperflow™, ZERONINE DESIGN air filters provide the ultimate in both airflow and filtration properties plus, thanks to a multi-stage manufacturing process, our filters also result in virtually no seepage of the frame material into the filter media.
That also translates to a larger comparable filter area and more surface airflow than the equivalent sized filters from some other well-known brands.
Compatible Models:
Mk2 Focus RS/RS500
Mk3 Focus ST
Mk3 Focus RS
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To enquire about having any of our products listed on this website fitted or intalled to your vehicle. Please call our workshop in St Albans, Hertfordshire, UK on: 01727867747. In addition to part fitting we also carry out Servicing, MOTS, Diagnostics & Repairs.
01727867747
8.00am - 6.00pm Monday-Friday
Closed Saturday/Sunday