Focus MK3 ST250 ITG BTCC Cold Air Induction SystemITG have a name associated with the very highest Motorsport Teams in the world. Their Air Filter products and reputation speak for themselves. After exhaustive testing this Billet CNC tubed kit has been proven beyond all doubt as the one to provide the coldest intake charge. The Focus ST's standard airbox can be found seriously lacking when the power levels have been pushed up by a re map and other modifications. To get the most from your Focus, ITG