"Conceived by S&S founder and brought to market by his son George B Smith, the Classic Two Throat carb and matched air cleaner served as a performance milestone in the v-twin space for over a decade. Now long gone, they are still a hot commodity for in-the-know chopper builders. Inspired by the unique style of their Two Throat intake, S&S has created the new "Tribute" air cleaner cover and wrapped it around their contemporary Stealth filter system. The forward facing scoop shape provides a distinct air flow advantage and we've always loved the look of this air cleaner, so bringing it back needed to happen!", states S&S Product Manager, Grant Hillegass.
S&S has a Stealth style air filter kit for most HD models and the Tribute cover bolts nicely to all of them (available as a complete kit or cover only) in chrome or gloss black.
The performance advantage is significant (up to 6hp on the M8 platform!) and most of the late model kits are CARB legal and warranty friendly.
Check them out on their site.