4.6 intake water leaking. Need Serious Help!

That looks right, but if you get it pay particular attention to the port shape where the intake mates up to the heads. The PI intake has slightly different port shapes but can still be used with minor modifications.

yes thats the correct intake. dont pay attention to what he said cause that isnt a PI version. the one in that ebay auction is the direct replacement intake. no modifications needed. but they can be had for much cheaper than that in the classifieds if you dont mind used.

PI is the name for the revised modular 2v heads, intake, and cams that are on 99+ mustangs. and various newer 4.6 and 5.4 2vs. it stands for power improved or performance improved depnding on who you ask. anyways the PI intake will work on his mustang. and will show some solid gains. but it does require a few small mods to make it work.

the intake in that auction though is the correct, direct replacement for his intake.

Performance Improved (PI) is the designation given to 99+ 2V 4.6L motors which gained 35 HP over the 98 due to better flowing heads and intake and a more radical cam profile. PI heads flow about as well as ported non-PI heads, and they can be ported to flow even better...