Mustang150

that's a good question. The only difference between the 2 engines is that the cobra motors are 4 valve and the GT are 2 valve, in theory there shouldn't be a difference. unless one of the pullys somehow interacts with the timing chain (not sure, never messed with a 4 valve motor)

it could also be to gain more money you know, some people just drop cash without doing the research to find out that they could spend less for the same

Webdoc

Not sure about the Cobra, but the 2001 Bullitt came from the factory with an UDP system. Assume the same with the Cobra since Ford used some of it's options on the Bullitt.

darkstarnes

Well what I have found... and i do not know if its true it's that the cobras have a smaller harmonic balancer.... but could it be that the alternator pulley its different?? since the GT and cobras are different....