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• Reduce drag and turbulence to improve downforce on the rear wing
or simply enjoy the clean simplicity of the titanium
15" or choose the 4" option to mate to your ETS Pro Exhaust
without having to disassemble your system
K&N Universal Air Filter 3in ID x 4 Tall (RU-3700) Ignite • Reduce drag and turbulenceK&N universal round tapered air filter with a 3" flange inlet, 4" filter height and rubber top. Includes the filter with matching stainless steel hose clamp. Purchase Includes: (1) Filter with Clamp Part Number: RU 3700 Flange ID: 3" (76mm) Height: 4" (102mm) Flange Length: 1. 75" (44mm) Base OD: 5" (127mm) Top OD: 4. 625" (117mm) Flange: Centered More Info: All K&N universal filters are constructed with ultra strong molded pliable rubber flanges