BRAND NEW Part # 170-0304B Fits: 1999-2017 Big Twin Models excluding 08-Present Touring and 2016-Present Softail Models Original S&S teardrop air cleaner assemblies Include an S&S cover, backing plate and high-quality filter element and hardware kit Increase horsepower with no other changes Available for most OEM fuel delivery and S&S performance intake systems Made in the U.S.A. NOTE: Exempt per CARB Executive Order (E.O.) D-355-21 for the models shown. NOTE: Installation of an S&S air cleaner may require engine re-tuning; however, tuning within the OEM emissions standards is required to maintain E.O. validity.