[focus0frenzy1]

I have a 2004 3.9 mustang. i know most parts for the 3.8 fit on the 3.9 but i was on mac's website. But didnt know the 94-97 were interchangeable with the 01-04




Mac Performance - performance accessories for cars, trucks, and motorcycles

 

[ByPopularDemand]

You want the 99-04 headers. Make sure you get the ones for cars with the egr tube if you have one