I was wondering if there are any companies that offer replacement pieces for the dash and console trim parts (like the cupholder parts/cluster surrounding the gauges...basically all the plastic parts of the interior) in carbon fiber or aluminum.
But I am only interested in complete replacement pieces (not interested in pieces that just go over the existing parts)

 

Definitely check out Bulletproof's website (bulletproofautomotive.com) to see the sweet c/f pieces for interior add-ons such as the tranny tunnel center, and trim along the steering rack area.

They're pricey and not made from the US, but worth a look.

When you get to the website, simply click on "S2000", then interior, and just scroll down until you see them.