DME Relay differences BIG 993/964

On the board recommendations I replaced the DME relay in my euro 93 C4. I ran down to the Porsche Dealer and for 39 dm ($19) picked up the new relay. On the side it indicated DME Relay and the serial number started with 993 (not the normal 964). This relay is about 1/2 in taller than the one I took out. Both were made in Hungry. I am hoping that the new one is more reliable than the the old one (and fixes the problem!). I took it out for a quick run tonight and it does idle a little soother (all in my mind??). Any thoughts?