My bro had an EDN30 and i got a Normal GTI. The Edn 30 is nice motor and does have more grunt than standard GTI. Remaped they are supposed to hit 300bhp. Me and my bro both had trail maps done on our cars at same time and while his was quicker not mayorlly soo i dont think.
Very good motors, though one tip if getting one dont get a manual, get a DSG! Trust me much much better than manual. And truly set these cars apart from the other hot hatches.
Only reason i went for a GTi was that it has the DSG box and they are soo much more refined than any other hot hatch.