2017-Later M8® CAST THROTTLE BODIES
HPi has added to their line up of Milwaukee-Eight® throttle bodies.  They have recently manufactured a cast aluminum throttle body for a more cost-effective way to upgrade your stock H-D® M8® throttle body.  Same popular size options as the billet throttle bodies, 58mm, 62mm and 70mm, plus a 65mm option as well.
 
The process is easy, after sending in your stock core throttle body, expect a 3–5 day turnaround with a complete upgrade including a fully CNC ported aluminum intake manifold.

Cast throttle bodies cannot be anodized.  They come black powder coated.