K&N's 57S Performance Airbox Lid & Performance filter upgrade - 57S-4000 SiCo Developments The New ford Fiesta EcoBoost

The New ford Fiesta EcoBoost 1

30 way adjustable damping

It lasts longer

The Airtec stage 2 had already proved itself in the Focus RS tuning scene as the must have mod for 400+ cars

:350 lbs/ft Torque was also down compared to Gen 3

K&N's 57S Performance Airbox Lid & Performance filter upgrade - 57S-4000 SiCo Developments The New ford Fiesta EcoBoostK&N filters have just launched their Gen1 Air box lid modification complete with K&N filter element, bolt on power in a matter of minutes. TUV approved for Europe, fits lots of applications Focus Mk2 RS Focus Mk3 ST250, Zetec S 1. 6 & 1. 6 Eco Boost, 1. 1 Eco Boost K&N's 57S Performance Airboxes increase horsepower and acceleration by dramatically reducing air flow restriction caused by the original factory design. They come with K&N's Million Mile