Hey Guys. I am dealing with the issue of whether replace the torque converter or have mine do an upgrade rebuilt it. The only one I talked to was A.C.E. Torque Converter, which, don't required a core to send, and I went to TOZO's shop in Illinois and he was very knowledgeable when it comes to Audi. I am open to any serious suggestions. I want to do the best, safe and correct change for my little beast, of course, to improve performance and reliability. Just to let you know, I am located in the Milwaukee, WI area. I hope to here from the experts. Thanks.