9k aero brakes, and normal 9000 brakes are the same during the later years, just using high quality pads/rotors with the later calipers will provide a good upgrade.
if you are looking for power, you options are pretty open, Newer 9k drivetrains/subframes bolt right into the older bodies, so if you are willing to put the work in, one good parts car can make a huge difference
also converting them to t5 is a breeze, since unlike c900s you can pull a junkyard harness that is already made to fit in that body (IE all wires are in the right spot already)
play your cars right, and you could have a super badass old body 9k for not much more than the cost of a parts car, and normal refresh parts on the way in.
Last edited by mike d; 02-17-2018 at 09:27 AM.