K&N 57i Generation II Induction Kits are built primarily for European vehicles. They come with K&N's No-Hassle Lifetime Limited Warranty™. These intake kits use only non-metallic rotationally molded tubes that can reduce air temperature and decrease intake sound over a metal tube. Restriction can exist BETWEEN an air filter and the engine reducing the benefit of a K&N Air Filter alone. The weakest link in the airflow chain robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the engine. K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into POWER. 57i Intakes are not legal for use in California and other US States adopting California emission standards.

Guaranteed to increase horsepower
Designed to improve throttle response and engine sound
Replaces entire factory air intake system
Washable and reusable lifetime air filter
K&N No-Hassle Lifetime Limited Warranty
Lasts up to 100,000 miles before service is required (depending on driving conditions)
Easy to install, usually in 60 minutes or less

Replacement Filter	RU-70031
Air Filter Color	Red
Air Filter Material	Cotton Gauze
Air Filter Outlet Shape	Round
Clamps Included	1
Clamp Material	Stainless Steel
Clamp Style	Regular
Couplers Included	None
Type	Gen II
Product Style	57i Series International Kits
Intake Pipe Color / Finish	Black
Intake Pipe Material	High-Density Cross-Linked Polyethylene
Street Legal In All US States	No
TUV Approved (Europe)	No
Weight	5.2 lb (2.3 kg)
Product Box Height	12.5 in (318 mm)
Product Box Length	22.25 in (565 mm)
Product Box Width	14.25 in (362 mm)
California Restricted	Not legal for sale or use in California
Mounting Hardware Included	Yes
Warranty	No-Hassle Lifetime Limited

K&N Performance Air Intake System (57I-2503) FORD FOCUS ST225/XR5