K&N RU-5122 offers taller profile for increased filter area. Red round tapered design maximizes airflow while maintaining excellent engine protection.Key Specs:Large End/Base: 5.5 in (140 mm)Flange...

Smaller footprint K&N RU-5135 Universal Clamp-On Air Filter is perfect for tight installations. Provides performance upgrade with reliable filtration.Specs:Large End/Base: 5.063 in (129 mm)Flange...

K&N RU-5138 Universal Clamp-On Air Filter with shorter height and wide 7.5in base for high volume airflow needs. Excellent filtration and power benefits.Details:Large End/Base: 7.5 in (191 mm)Flange...

Tall and narrow K&N RU-5144 Universal Clamp-On Air Filter for applications needing extended filter height. Delivers increased performance and protection.Specs:Large End/Base: 4.75 in (121 mm)Flange...

K&N RU-5147 Universal Clamp-On Air Filter balances size and performance. Red cotton gauze provides high flow and outstanding filtration for universal use.Key Specs:Large End/Base: 6.5 in (165...

The K&N RU-5147DK Drycharger Air Filter Wrap adds an extra layer of protection to your K&N filter. Silicone treated polyester repels water while allowing high airflow. Extends service interval and...

Short profile K&N RU-5163 Universal Clamp-On Air Filter for low clearance applications. Maintains high performance with cotton gauze media.Specs:Large End/Base: 6.5 in (165 mm)Flange Inside Diameter:...

K&N RU-5163XD Tapered Conical Universal Clamp-On Air Filter with extra duty construction. Provides robust filtration and airflow in universal setups.Features:Base/Outside Diameter: 6.5 in (165...

Large K&N RU-5172 Universal Clamp-On Air Filter with 9 inch base for maximum airflow. 6 layers of cotton gauze for superior protection in high-demand use.Specs:Large End/Base: 9 in (229 mm)Flange...

K&N RU-5173 Universal Clamp-On Air Filter offers solid performance in a balanced size. Red cotton gauze media for increased power and clean air.Key Specs:Large End/Base: 7.5 in (191 mm)Flange Inside...

K&N RU-5174 Universal Clamp-On Air Filter with extended flange length for secure fit. Provides excellent airflow and filtration in custom setups.Specs:Large End/Base: 6 in (152 mm)Flange Inside...

K&N RU-5176 Universal Clamp-On Air Filter is a versatile performer. Compact height with standard 6in diameter for broad compatibility.Details:Large End/Base: 6 in (152 mm)Flange Inside Diameter: 3 in...