More 99 Cobra info ....
99 Cobra recall:
The heart of it. The 99's had a poorly casted intake manifold with casting flaws and a lot of flash everywhere, as I understand. The fix; FORD extrude honed the intake to smooth the runners and regain the flow capability lost, and I remember something about swapping our exhaust as well to meet the expect/advertised hp claim. Anyway, FORD and SVT took a lot of grief over the underpowered Cobras that year.
Reasoning by the lack of domestically sold Cobra for MY2000....was the recall and ensuring the following year did not have the same problems.