I have a 99 GT, and i have a friend with a 98 Cobra, he is looking do put on longtubes. I was wondering about his headers, im pretty sure cobra headers out flow the GT manifolds, and was curious if it would be possible to use them on my GT?

 

No as the heads are different and the ports wont match up.

 

What he said. Question - why do you not have your GT in your sig?