The fr500 upper lid is different than the 99-01 cobra or 03-04 Mach 1 lower so you would need the fr500 lower to work. Here's the fr500 lower and a 03-04 Mach 1 lower( green top)
I know, I'm looking for FR500 intake manifold top cover, similar to the cover pictured , this cover is specified to be installed on FR500 intakes to install in vehicles FORD MUSTANG COBRA 99-01 and MACH 1 03-04 , your first picture corresponds to a 96-98 COBRA fr500 intake manifold .
Your second picture corresponds to stock / oem lower intake manifold from 99-01 COBRA and 03-04 MACH 1 , NOT FR500 intake manifold .
IM LOOKING FOR THE UPPER LID ONLY ( SAME AS PICTURED ).
Mrpancho95 ,
The picture you put is the version of the FR500 intake manifold for 96-98 COBRA , that model I have one, all the FR500 intake manifold are for "C" Type heads, just what I look for is a cover or lid for the version of FR500 intake manifold for 99-01 COBRA .