Cobb Focus ST/RS Air Filter

We thought we would make it easier for our newest customers to upgrade their Focus RS's by introducing our best selling products now in a package! ...

This Performance Air Intake System allows your engine to breath more air compared to the restrictive factory air intake housing. It is designed, tu...

Right out of the box, the 2016-2017 Focus RS is a performance driven hot hatch with a very well designed intake system. However, cp-e decided that ...

Is your engine choking for air and in need of some additional horsepower? If so, Injen has exciting news for you! The SP series of cold air intakes...