K&N 57S-4000 Performance Air Intake System FORD FOCUS II RS

Description K&N 57S-4000 Performance Air Intake System FORD FOCUS II RS

The K&N 57S-4000 Performance Airbox replaces the restrictive factory air filter and air box lid. K&N performance air boxes are engineered to reduce air flow restriction and smooth and straighten air flow. This enables the engine to draw in a larger volume of air compared to the factory air filter assembly.

The 57S-4000 Performance Airbox includes an oversized conical K&N high-flow air filter and an injection molded air box lid with the K&N logo embossed on top. The air filter can be used for up to 100,000 miles before servicing is required, depending on driving conditions. Installation is straightforward with commonly available tools.

Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Refer to the K&N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.

• Guaranteed to increase horsepower
• Designed to improve torque and acceleration
• Replaces entire factory air box and air filter system
• Washable and reusable lifetime air filter

Specifications:

• Replacement Filter: E-9289
• Air Filter Color: Red
• Air Filter Material: Cotton Gauze
• Air Filter Outlet Shape: Round
• Clamps Included: No
• Clamp Material: Stainless Steel
• Clamp Style: Regular
• Couplers Included: None
• Type: Gen I
• Product Style: 57i Series International Kits
• Street Legal In All US States: Not legal for sale or use in California on any pollution controlled motor vehicle.
• TUV Approved (Europe): See Vehicle Applications
• TUV Certificate Number: TU-025979-C0-206
• Weight: 4.2 lb (1.9 kg)
• Product Box Height: 11.81 in (300 mm)
• Product Box Length: 15.34 in (390 mm)
• Product Box Width: 11.81 in (300 mm)
• California Restricted: Not legal for sale or use in California
• Mounting Hardware Included: Yes
• Warranty: No-Hassle Lifetime Limited