Milltek Ford Focus Mk3 RS 2.3-litre EcoBoost 4wd 5-Door Hatchback 2016-2018 Active Valve Control Exhaust Injection or the do88 air filter

or the do88 air filter system with 66 mm connections

PRESSURE DROP IMPROVEMENTS

Designed for racetracks and closed courses only and requiring mandatory remapping of the ECU

smoother faster RS

High quality laser cutheat shield helps block hot engine air

Milltek Ford Focus Mk3 RS 2.3-litre EcoBoost 4wd 5-Door Hatchback 2016-2018 Active Valve Control Exhaust Injection or the do88 air filterAll Milltek performance exhaust systems are manufactured from T304L stainless steel; giving you the satisfaction of knowing that our products are meant to last within some of the toughest environments. T304L is a highly durable form of stainless steel that is far less susceptible to degradation and discolouration than many others of its kind, while it will last almost indefinitely.