K&N E-9289 Features:

The E-9289 custom air filter is manufactured to replace the air filter in the 57S-4000 performance air box. The filter can be washed and reused repeatedly.

• Replacement air filter for 57S-4000
• Designed to boost horsepower and rate of acceleration
• Can be cleaned and used over and over again
• Comes with a K& N embossed lid cap
• Air Filter Color: Red
• Air Filter Large End Diameter: 5.719 in (145 mm)
• Air Filter Material: Cotton Gauze
• Air Filter Shape: Round Reverse Tapered
• Base Outside Diameter: 5.75 in (146 mm)
• Filter Re-Oiling Amount: 1.04 oz (31 ml)
• Flange Angle: 0 degrees
• Flange Inside Diameter: 2.75 in (70 mm)
• Flange Length: 0.438 in (11 mm)
• Flange Offset: 0 in (0 mm)
• Flange Type: Centered
• Flanges: 1
• Frame Design: Flexible
• Height: 7.688 in (195 mm)
• Item Type: High Performance
• Oil Included: Yes
• Overall Filter Efficiency: Up To 99% Efficiency
• Pre-Screened: No
• Top Material: None
• Top Outside Diameter: 5.938 in (151 mm)
• Top Style: Plastic
• Washable: Yes