Part Number: 34-0178 Manufacturer: Arlen Ness UOM: 1 - EA Summary:Stage I air filter kit is for carburetor or EFI models. Air cleaner kit have the all-in-one backing plate that features a built-in carburetor support and built-in breather tunnels at each head to decrease crankcase pressure. Each tunnel exits at the mouth of the carburetor to create a virtually closed loop system. Includes " big Sucker" aluminum backing plate, high-flow air filter, 4 chrome banjo bolts, simple instructions, and all the necessary hardware. Style: Round Fitment: FXST 2000-2013 FLT 2000-2007 FLST 2000-2013 FXD 1999-2013 Tech. Notes:For use on 2000-2006 carbureted models, 2002-up Delphi fuel injected models. Not for use on 2008-up EFI FLT models.Country of Origin: USA