I5 Cast Inlet Plenum [Mk2 Focus RS/ST] Power Please note: As this product

Please note: As this product is produced individually with your vehicle registration

Designed to complement mk2 Focus ST and mk2 Focus RS mountune LUX floor mats

cylinder bore wear and noise

using genuine Ford parts and fluids

the route the oil vapour takes on its way to the intake manifold has been significantly increased through the labyrinth design

I5 Cast Inlet Plenum [Mk2 Focus RS/ST] Power Please note: As this productmountune's highly skilled engineers identified an obvious performance and aesthetical improvement to all I5 engines through the creation of an I5 cast inlet plenum. Extensive in house CAD and CFD work (by the same team responsible for producing mountune's BTCC, WTCC, WRC and Rallycross inlets) allowed an improvement to be made particularly around the port entrance to each inlet, as well as to increase the volume of the plenum itself to a more