Headers

Either product will likely suit you fine. In my opinion, you'll likely find that the JBAs are a tad more quality a product for the money. That said, MAC aren't junk, they just appeal more to a value-oriented application.

I ran a MAC H pipe on two of my past Mustangs and never had issues with fitment or longevity over the course of 5 years and 3 years of ownership, respectively.

Hope this helps a bit.

I have JBA's on mine, and like them. I know others that have had MAC with no issues as well, and they make LT's for our cars.