S&S Cycle Classic Teardrop Air Cleaner Kit For Harley Touring / Softail / Dyna With S&S Single Bore EFI S&S continues to push the envelope with its classic Teardrop air cleaner kits, pairing the contemporary Stealth backing plate with a high flow filter. It remains one of the most recognizable intake systems in the industry. For riders who want a piece of history on their bike, it delivers proven performance in a design that has stood the test of time. Available in chrome, it installs easily and fits a wide range of applications. Features: Efficient and free-flowing intake that can add two to five horsepower Uniquely designed backing plate has air horn style radius entryway to reduce turbulence Dimpled cover with directional air cone on inside creates smooth path for air Great addition to performance exhaust or cams Kit Contains: Filter, Backing plate and Cover, All mounting hardware, Instructions Designed for 52mm S&S Cycle single bore EFI throttle body with stock or S&S Cycle heads with stock or 4 bore head breathing