Air and Fuel Air Cleaners, Filters, Intakes and Components

K&N Engineering

K&N Performance Intake Kit FORD FOCUS II ST 2.5L 20V TURBO

$367.99

SKU: K001 57I-2503

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

K&N 57i Generation II Induction Kits are built primarily for European vehicles. They feature non-metallic rotationally molded tubes to reduce air temperature and decrease intake sound compared to metal tubes. These kits replace the factory air filter and the entire air path to the engine, aiming to eliminate air path restriction and increase horsepower. The aerodynamically engineered tube drives a massive amount of air into an engine. This product is not legal for use in California and other US States adopting California emission standards.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandK&N Engineering
Part NumberK001 57I-2503

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy