So probuilt if you can honestly say you have never and I mean never seen a bad VIG converter or damage that a Vig has caused to a tranny than than I will lay silent. LOL I guess My converter that has been in 2 of my cars that have both run low 11s at over 122mph on nitrous and has over 10000 miles may just be a fluke Anyways people are gonna chose what is likely in there budget Thats what I did at the time , I think you will agree with me on that , And also as I stated before If I wanted An all out best performing track converter , I would look at the Yank Line of PT converters 4000, 4200, 4400. Also its funny how you always dig TCI for problems you tend to have with your trannys , could it be a QC problem other than The converter , NAH