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K&N RU-3600 Universal Air Filter - 4in Flange, 5-3/8in Base, 5in Height (Select 1997-2008 Audi, BMW, Mercedes-Benz, Saab)

$62.99

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K&N RU-3600 Universal Air Filter - 4in Flange, 5-3/8in Base, 5in Height (Select 1997-2008 Audi, BMW, Mercedes-Benz, Saab)

$62.99

$62.99

Fits select 1997-2008 Audi A3 and TT, BMW 318i, Mercedes-Benz C230, and Saab 9-3 models.

The K&N RU-3600 Universal Air Filter is engineered for high-performance applications where a custom intake or replacement filter is required. Built with K&N's signature four-layer oiled cotton gauze media, this filter provides exceptional filtration efficiency and high airflow. The mounting flange is constructed from ultra-strong molded pliable rubber, designed to absorb engine vibration and ensure a secure attachment. For versatile fitment, the rubber flange can be stretched up to 1/16-inch (1.5mm) to accommodate in-between intake tube sizes.

  • Manufacturer Part Number: RU-3600
  • Filter Style: Round Tapered Universal Air Filter
  • Flange Inside Diameter: 4 in (102 mm)
  • Base Outside Diameter: 5.375 in (137 mm)
  • Top Outside Diameter: 4.5 in (114 mm)
  • Height: 5 in (127 mm)
  • Media: 4 Layers of Washable Cotton Gauze
  • Flange Offset: 0 in (Centered)
  • Warranty: One Year Limited Warranty
🔧 Fitment & Compatibility
Year Make Model Submodel
2006-2008 Audi A3 Base
2008 Audi TT Base
1998 BMW 318i Base
1997-1998 Mercedes-Benz C230 Base
2001 Saab 9-3 Base
2001-2002 Saab 9-3 SE

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