For the 2013 Championship winning Duster, we have a small list of upgrades in progress:
1-Wilwoods on all four corners (got the fronts almost ready to put on the car!)
2-Relocate the master cylinder to the chassis
3-New slicks
4-Finish the tin work for the interior
5-Finish painting the floor and cage (in progress, along with a new seat)
6-Bigger fire extinguisher
7-Cut out rear cross sub-frame that's badly notched for clearance and install a new tubular one (Complete)
8-Fix oil leak
9-Tubular upper A-arms (almost ordered a set today)
10-SV1 carburator (got a quote for one)
11-re-scale the car
Whatever money & time allows