I have a FXDLS.
Changed the intake because I hate the whale dong heavy breather, so it's a mismatch of bits but a DK Customs backplate, externally vented to a small breather. K&N element.
Bassani Road Rage 3, Powervision.
Makes 95hp & 114ftlb and 12.0 @ 107mph. Enough to make the rear tyre very sad.