COBB's High-Flow Air Filter for the 2013 to 2018 Focus ST 2.0L EcoBoost Hot-Hatch replaces your ST's stock disposable air filter with a far more efficient design that's also reusable, giving your ST some improvements in power and throttle response while saving you some cash down the road since you won't need to buy a new filter for every service interval. Nice Airflow Increase from a Reusable Oiled Air Filter Design One of the easiest and least expensive ways to improve the performance of your Focus ST is also a great way to save you some cash in the long run. The Stage 1 Package's components are all firly basic and easy to install, making this an excellent entry-level performance kit for those new to the modding world or anyone who's only looking for baseline performance increases. The COBB Stage 1 Power Pack comes with a COBB Accessport V3 tuner with Focus ST performance tunes, a COBB Focus ST rear motor mount, and a COBB high-flow drop-in air filter that all work together to get your Focus ST big power gains while resisting wheel hop and driveline issues.

Meet the COBB Stage 1 Power Package that gives your aggressive 2013 to 2018 Focus ST build an awesome increase in horsepower and torque, along with all the parts you need to get that power down to the ground to instantly transform your hot-hatch into a true performance car. Nice Gains in Performance with Drivability Improvements The only thing better than getting a bunch of high-quality COBB Tuning performance parts and tuning for your 2013 to 2018 Focus ST is getting them all in one place at a price point that's lower than ordering them individually. This part number is not currently available from Stage 3

Fod focus st cobb stage 1