K&N Filters Universal Air Filter 4 Inch - Universal
![K&N Filters Universal Air Filter 4 Inch - Universal](https://cdn.shopify.com/s/files/1/0754/6748/9554/products/d234fcfa7ac554a8f9f6537df99d7833_20011f9e-8a71-4ccb-8414-f1402cd38532.jpg?v=1695154645)
The Universal Clamp On Air Filter helps your engine breathe better to increase horsepower.
![](https://www.extremepsi.com/store/images/D/RE-0870_Base.jpg)
EXTREME PSI : Your #1 Source for In Stock Performance Parts
![](https://res.cloudinary.com/knfilters-com/image/upload/c_lpad,dpr_2.0,f_auto,h_540,q_auto,w_540/v1/media/catalog/product/R/U/RU-3570_2.jpg?_i=AB)
K&N RU-3570 Universal Clamp-On Air Filter
![](http://stmtuned.com/cdn/shop/products/RU-5111-kn-air-filter-1_1024x1024.jpg?v=1645542963)
K&N Universal Air Filter 3in ID x 5.75 Tall (RU-5111)
![](https://extremeperformanceandoffroad.com/cdn/shop/products/58b0cdf718a60a48674e4227a3989c1e_1024x1024.jpg?v=1691957016)
K&N 2-1/8in DUAL FLG 6-1/4 X 4inOD 3inH Universal – Extreme Performance & Offroad
![](https://static.summitracing.com/global/images/prod/xlarge/knn-ru-1750_bp_xl.jpg)
K&N RU-1750 K&N Universal Performance Air Filters
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars,
![](https://content.motosport.com/images/items/large/KNN/KNN0013/X003-Y014.jpg)
K&N Universal Clamp-On Air Filter - Round Tapered
![](https://privatelabelmfg.com/cdn/shop/products/RG-1001RD_Exp.jpg?v=1652130108)
PLM x K&N Adjustable Size 3 3.5 4 Universal Air Filter
ch Height K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled
![](https://i.ebayimg.com/images/g/fqQAAOSwJVplSDbk/s-l1200.webp)
K&N Universal Rubber Filter 4 1/2 inch FLG / 5 7/8 inch Base / 5 inch Top / 6 in
4FLG, 6OD-B, 4-5/8OD-T, 9H
![](https://res.cloudinary.com/knfilters-com/image/upload/c_lpad,dpr_2.0,f_auto,h_540,q_auto,w_540/v1/media/catalog/product/R/E/RE-0870_1.jpg?_i=AB)
RE-0870 K&N Universal Clamp-On Air Filter
![](https://www.speedfactoryracing.net/cdn/shop/products/bd157c03d6a9452f4e2ef9efe697d0ba_9e65fb1d-632a-4aaf-ab44-85cb9a5573c7_1024x1024.jpg?v=1694190769)
K&N Universal 4 Inch Filter – SpeedFactoryRacing
![](https://ae01.alicdn.com/kf/S7382abd70eba4c71a522d74c7d1222a9E/Car-High-Flow-Air-Filter-Cold-Air-Intake-Universal-Filters-3-3-5-4inch-for-Sport.jpg)
Car High Flow Air Filter Cold Air Intake Universal Filters 3 3.5 4inch for Sport Racing Car Engine Air Inlet 76MM 89MM 101MM - AliExpress
ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
![](https://m.media-amazon.com/images/I/81snT046GEL.jpg)
K&N Universal Clamp-On Air Intake Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 6 In, Flange
![](https://i5.walmartimages.com/asr/0e5e67e4-b7c7-45e6-915b-8569f0352a0a.fa787cb4948b442e505fa59afd891c01.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
K&N RU-3130 Universal Air Filter