I am using a fairly well built EFI 351w in front of a stock T5. I need a transmission that will be able to take a bit more power. The T5 is on its way out and I need some opinions on what to replace it with. I really don't care too much if its a manual or auto trans either. I was thinking about a c4 swap but I don't know how well that would work on the highway seeing as it only has 3 speeds. I would like a tko500 but that is well out of my price range. any thoughts or opinions?