![K&N Air Filter Replacement 57 & 63-Series for 1999-2006 BMW 3-Series [E46]](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/1280x1280/products/34866/162159/bmwe46-kn57repl330_1154135107__38955.1583267730.JPG?c=3 "K&N Air Filter Replacement 57 & 63-Series for 1999-2006 BMW 3-Series [E46]")
![K&N Air Filter Replacement 57 & 63-Series for 1999-2006 BMW 3-Series [E46]](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/34866/162160/bmwe46-kn57repl330_1154134279__36039.1583267730.JPG?c=3 "K&N Air Filter Replacement 57 & 63-Series for 1999-2006 BMW 3-Series [E46]")
[From K&N's Site]
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16"" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.
RC-4630 Product Specifications -330i Filter
Product Style: Round Tapered Universal Air Filter
Base Outside Diameter: 5.5 in (140 mm)
Flange Inside Diameter: 3.5 in (89 mm)
Flange Length: 1.25 in (32 mm)
Flange Type: Centered
Height: 6.5 in (165 mm)
Top Outside Diameter: 4.5 in (114 mm)
Top Style: Metal
Top Material/Finish: Chrome
Filter Re-Oiling Amount: 1.45 oz (43 ml)
Weight: 1.3 lb (0.6 kg)
Product Box Length: 11 in (279 mm)
Product Box Width: 6.5 in (165 mm)
Product Box Height: 6.5 in (165 mm)
RU-4730 Product Specifications -323/325/328
Product Style: Round Tapered Universal Air Filter
Base Outside Diameter: 6 in (152 mm)
Flange Inside Diameter: 3 in (76 mm)
Flange Length: 1.875 in (48 mm)
Flange Type: Centered
Height: 6.5 in (165 mm)
Top Outside Diameter: 5 in (127 mm)
Top Style: Rubber
Top Material/Finish: None
Filter Re-Oiling Amount: 1.26 oz (37 ml)
Weight: 1.2 lb (0.6 kg)
Product Box Length: 11 in (279 mm)
Product Box Width: 6.5 in (165 mm)
Product Box Height: 6.5 in (165 mm)
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16"" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.
RC-4630 Product Specifications -330i Filter
Product Style: Round Tapered Universal Air Filter
Base Outside Diameter: 5.5 in (140 mm)
Flange Inside Diameter: 3.5 in (89 mm)
Flange Length: 1.25 in (32 mm)
Flange Type: Centered
Height: 6.5 in (165 mm)
Top Outside Diameter: 4.5 in (114 mm)
Top Style: Metal
Top Material/Finish: Chrome
Filter Re-Oiling Amount: 1.45 oz (43 ml)
Weight: 1.3 lb (0.6 kg)
Product Box Length: 11 in (279 mm)
Product Box Width: 6.5 in (165 mm)
Product Box Height: 6.5 in (165 mm)
RU-4730 Product Specifications -323/325/328
Product Style: Round Tapered Universal Air Filter
Base Outside Diameter: 6 in (152 mm)
Flange Inside Diameter: 3 in (76 mm)
Flange Length: 1.875 in (48 mm)
Flange Type: Centered
Height: 6.5 in (165 mm)
Top Outside Diameter: 5 in (127 mm)
Top Style: Rubber
Top Material/Finish: None
Filter Re-Oiling Amount: 1.26 oz (37 ml)
Weight: 1.2 lb (0.6 kg)
Product Box Length: 11 in (279 mm)
Product Box Width: 6.5 in (165 mm)
Product Box Height: 6.5 in (165 mm)
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