It's one of those wedge push in types you can buy at any auto store for about $10 a pair.
The most expensive bits were the two side panels as I didn't want to cut up my original ones and the little wiring harness I cut up with the bulb adapters that screw in to the clearance light holes. Parts 11, 12 & 5 , the rest is simple and cheap.
I also fitted a couple of flush mount LED blinkers in the fake ram air ducts today so the blinker would be visible more at night.