So my '99 GT has developed a pretty good exhaust leak from the driver's side exhaust header. I bought it with the long tubes, and yeah, they sound great, but I would have never have put them on for this very reason. I know the engine has to be disconnected from the motor mounts and such, but is there anything else major involved? I found this article on how to install long tubes, but would the installation be the same changing a header gasket? Do I really have to pull all that other crap out of the way? http://www.mikefordmustang.com/writeups/ltsv8/long-tube-install-mustang-gt.php#5 Thanks in advance.