K&N Generation II Induction Air Intake Kit for 98-05 BMW 3-Series

As with every K&N kit, when you bolt-on a K&N 57i Performance Induction Kit, you will notice the difference the next time you drive your vehicle. K&N 57i Performance Induction Kits are a great way and in many cases the only way to maximize airflow and engine performance. They will replace the factory air box providing both High-Flow air filter technology and a larger air filter size. This winning combination will increase horsepower and sound great too.

K&N 57i Performance Induction Kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range.

Gen I - K&N 57i Gen I Induction Kits take advantage of the added airflow provided by an oversized air filter released from the restrictive factory air box..

Gen II - K&N 57i Generation II Induction Kits are built primarily for European vehicles.

Features:

• Designed to increase HP and Acceleration
• Engineered to Specific Vehicle Design
• Easy to Install, Usually in 90 minutes or less!
• Lasts up to 100,000 Miles Before Service is Required (depending on driving conditions)
• Million Mile Limited Warranty
• Replaces OEM Filter and Air Box
• Air Filter is Washable and Reusable
• Works with Original Equipment Manufacturer Computer Systems

Specifications:

• Air Filter Color: Red
• Air Filter Height: 6 in (152 mm)
• Air Filter Large End Diameter: 5.438 in (138 mm)
• Air Filter Material: Cotton Gauze
• Air Filter Outlet Shape: Round
• Base Outside Diameter: 5.375 in (137 mm)
• California Restricted: Not legal for sale or use in California
• Clamp Material: Steel
• Clamp Style: Regular
• Clamps Included: 3
• Couplers Included: 1
• Flange Angle: 0 degrees
• Flange Inside Diameter: 4 in (102 mm)
• Flange Length: 0.625 in (16 mm)
• Flange Type: Centered
• Height: 6 in (152 mm)
• Intake Pipe Color / Finish: Black
• Product Style: 57i Series International Kits
• Replacement Filter: RC-4550
• Top Outside Diameter: 4.5 in (114 mm)
• Top Style: Chrome
• Type: Gen II
• Weight: 6.5 lb (3 kg)
• Intake Pipe Material: High-Density Polyethylene
• Product Box Height: 12 in (305 mm)
• Product Box Length: 18 in (457 mm)
• Product Box Width: 12 in (305 mm)