I have an '04 Elantra GLS auto that I am close to fully owning. When I do, I want to try and put a better transmisson in it. I dont know about other elantras but mine when I hit the gas just sits there, revs, and then decides to go (mainly at dead stops). Im not looking to put my car on the track, but I want some thing that will perform better than what I have now. Does any body know where I can find a better performing tranny? Also, if I do replace it, what other parts may I have to replace with it?