Hey, I just found that I have a crack in my exhaust manifold. Its been causing me problems for some time and it is time to fix it, but I was thinking of replacing my whole exhaust system with a new aftermarket one. One problem Ive found is that the manifold and cat convert are one peice (or so the dealer tells me) and I cant seem to find anything online for sale like that. So my question is has anyone replaced their exhaust from the Manifold to the tailpipe, and what did you use? Its a 2000 Elantra with California Emissions, Im not sure if that matters. Excuse my ignorance Ive never actually tired to fix my own car before.