I have looked at past posts and someone who was having poor spool-up (LIKE ME) was told that he/she may have the "wrong D5" converter installed. I thought there was only "ONE" D5 converter for the GN. Are there others out there that are not correct for this car. Someone told me that as long as it is stamped "D5" all the way around, then it is the correct one for the GN. I am very confused! I am trying to chase down a slow-spool-up problem.