i was just running all my numbers today that i could find on my car/parts and seeing if they were what they were supposed to be. anyways i bought the car like it is, and it has dynomax headers on it. the model number is 87705, yet when i look up these headers they come up for a camaro/firebird. everything on my car is ford so i know its not a chevy engine . so how will these headers fit onto a ford 5.0 arent the exhaust ports set up different, and could this be a potential problem with my lagging mustang???

 

wow, never heard of that before.....

 

So what are youre headers doing leaking? It could be exhaust manifold gaskets could be gone, They may need to be replaced.

 

I think thats just how they come up. Since Ive been on this forum, Ive seen at least 5 people say that they ran the number on their headers and they came up for a camaro/firebird.

 

ya put in a new set of header gaskets and see how that works that is most likely yout problem!