K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 14inch H
$89.99
KNNRE-0880
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H
$74.99
KNNRE-0870
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter 5 Degree Angled Flange 3.5in OD / 2.5in Flange ID / 6in Height
$74.99
KNNRB-0720
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter 6in FLange ID / 7.5in OD / 6in Height / Round Straight
$64.99
KNNRU-3060
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter 6in ID 7.5in OD 12in H
$89.99
KNNRU-3040
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter Dual Flange Oval Tprd 3.75in Base O/S W x 3.438in Top O/S W x 6.75in H
$74.99
KNNRU-4710
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter Round Tapered 4.5in Flange ID x 5.875 Base OD x 5in Top OD x 3.25in H
$74.99
KNNRU-3110
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Rubber Filter Round Tprd 3.313in Flange ID x 4.75in Base OD x 3.5in Top OD x 6.5in H
$74.99
KNNRU-2710
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal Tapered Filter 3.125in Flange ID x 5in Base OD x 3.5in Top OD x 6in Height
$74.99
KNNRU-3250
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
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...
K&N Universal X-Stream Clamp-On Air Filter 3.5in Flg ID/4in OD/5.75in H
$119.99
KNNRX-4130-1
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more...
K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in H
$199.99
KNNRX-4140
Air Filters
Air Filters - Universal Fit
BMW Z4
Performance
K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more...
K&N washable, reusable High-Flow Air Filter.
$79.99
KNNE-2022
Air Filters
Air Filters - Drop In
BMW Z4
Collections
Collections
Performance
K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are...
