The first step in getting more performance out of an engine is to let it breathe easier, and if there’s one thing Harley-Davidson owners like, it’s the distinctive sound of their V-Twin ...

Harley-Davidson also offers optional Screamin' Eagle performance air cleaners to add some extra grunt and performance drama to the Low Rider S.

Harley-Davidson also offers optional Screamin' Eagle performance air cleaners to add some extra grunt and performance drama to the Low Rider S. Engine Configuration V-Twin; Air-Oil-Cooled Engine ...