Help with exhaust leak.

[CincySR]

My stang has been developing an exhaust leak over the past month, and its getting worse of course. It has a MAC offroad h-pipe, and MAC exhaust on it. the downside is that it has no cats, so I can't take it to a shop. I cannot find the leak myself. Wondering if anyone could perhaps help me out with this or what not?

[Black Horse]

Make sure all of the bolts and connections are tight. Loose header bolts, or the connection or the header to the pipe are some of the biggest sources of leaks.

[mustangrfast88]

i got all mac on my car, and i just start at headers and make sure everything is tight and well car is in air start it let run for 10 min and go back and retighten everything and that should take car of leak and i would say i would help but i live a hour away from cincy

[Pitbull1052]

I've got all mac also and two of my header bolts seem to get loose over a months time..... even if one is slightly loose I can hear and feel the difference....

[mustangrfast88]

i got lock nuts for mine and they havent come loose yet and he is right a slight leak will make a differance

[redfirepearlgt]

Had Mac O/R X pipe on my 02. Always leaked on the passenger side at the manifold. Nothing would fix it. Purchased a Bassani catted X-pipe, no more leaks. Later read that there was a fitment problem with Mac O/R mid-pipes. Never verified this sincethe problem was resolved. Won't use MAC again. Just my .02. Once bitten twice shy.

[CincySR]

Thank you guys for the input, haven't gotten to work on it yet.