Alright I just bought a 01 GT that has some mods done to it from a dealership, and I bought a extended warranty on it. Well for sure where the headers and the mid-pipe come together and possibly where the headers meet the block it's leaking exhaust. I can hear it when I'm driving more than any other time. I'm planning on taking it there to see what they'll do with it.... If they won't fix it then how hard is it just to replace header gaskets? And would it be smart at all to have the headers welded to the mid-pipe? Or maybe I'm thinking V-bands welded on?

 

Thats funny. I have BBK headers, and the gasket SUCKS! Just last night, they started to leak after being on my car for less than a month.

 

Get some percey gaskets. If I ever decide to do headers, I would get them.