Coil on plug 2001 Bullitt

[whatnow]

First one to post!!! not really
2001 Bullitt 4.6L SOHC coil on plug.
That's car I'm having issues with. The car is cutting out like it has a bad spark plugs. Not all the time though. It runs fine until it gets warm. Then it cuts out under any kind of load. The check engine light never comes on. I'm getting frustrated with this darn thing.
problem: Cuts only when warm,acts like there is bad spark plugs.
a: replace all coils $400.00, use msd not factory stuff
b: replace all spark plugs.....got denso iridium plugs, still cuts out
c: mass-air meter has took a dump
d: sell car
e: blow up use gap insurance....no I'd replace engine before then
So please, help me out... do you have an idea?