The ZERONINE Design carbon induction kit for Mk4/Mk4.5 Focus ST and Focus ST-line 1.5-litre model features a beautifully engineered HVF (High Volume Flow) carbon fibre air filter housing, which thanks to its natural heat-resistant properties and combined with the supplied dual-entry air filter, provides virtually un-compromised airflow to your 2.3-litre EcoBoost engine.

This kit includes an enlarged 73.5mm bore matt-finish carbon fibre air filter assembly that evenly distributes cold air being drawn in from the dual-entry air filter and factory front air feed, as well as acting as a thermal barrier, shielding the filter from unwanted engine bay heat.

In addition to the front feed, this kit also includes a lower air-feed hose which mounts to a cold air entry point in the bottom of the heat shield and picks up an additional cold air feed from a low-pressure area behind the bumper.

Engineered to deliver the ultimate open-cone solution for owners wanting maximum performance, an engineered acoustic output and unrivalled aesthetic improvements.

Suitable for vehicles at all stages of tune from standard power output to 400PS+ / 560Nm+.

Note: as carbon fibre is a man-made manufacturing process, small differences in the finish of parts is considered completely normal.