I have had this exhaust with mac off road x pipe for 6 years, and it is great! Fit and finish are spot on, hasn't even started rusting yet. I think the sound is pretty mean too. If you want a hardcore sounding exhaust for your fox, this system is for you. If you want a neighbor friendly sounding mustang this system is NOT for you.
Pros: loud, fits good, tips look great, can't beat the sound for the price.
Cons: none that I can think of