K&N Performance Intake Kit For BMW - 57S-2003

The K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid provides easy access to the filter when cleaning is required. This performance air box is relatively easy to install. The required tools are commonly available and it uses the previous air box space. These air box systems are built to last for the life of your vehicle and they're backed by K&N's No-Hassle Lifetime Limited Warranty. Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Check the K&N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.

Product Features:

• Increases horsepower
• Designed to improve torque and acceleration
• Replaces entire factory air box and air filter system
• Washable and reusable lifetime air filter
• Easy to install, usually in 60 minutes or less
• K&N No-Hassle Lifetime Limited Warranty

Product Attributes:

• Air Box Included: Yes
• Air Filter Color: Red
• Air Filter Material: Cotton Gauze
• Air Filter Outlet Shape: Round
• Air Filter Washable: Yes
• California Restricted: Not legal for sale or use in California
• Clamp Color/Finish: Not Applicable
• Clamp Material: No Clamps Required
• Clamp Style: No Clamps Required
• Clamps Included: No Clamps Required
• Coupler Color/Finish: Not Applicable
• Couplers Included: Not Required
• Estimated Horsepower Gain: 9.9 HP @ 3200 RPM
• Intake Pipe Color / Finish: Black
• Intake Pipe Material: High-Density Cross-Linked Polyethylene
• Intake Pipe Ports: All intake tube ports needed for the specified applications are included
• Mass Air Flow Sensor Adapter Included: No
• Mounting Hardware Included: Yes
• Oil Included: Yes
• Package Material: Corrugated
• Package Type: Box
• Product Style: 57i Series International Kits
• Replacement Filter: RU-5293
• Street Legal In All US States: Not legal for sale or use in California on any pollution controlled motor vehicle.
• TUV Approved (Europe): No
• Type: Gen II
• Warranty: No-Hassle Lifetime Limited
• Weight: 7 lb (3.2 kg)