i've been looking for a splitter as well, but so far no luck. i'm getting my car lowered on kw v1 coilovers so going to see how much space i have left just in case multi storey car parks become a problem. at the moment there's not that much room to clear a kerb.
 
There is the splitter that was in the VW magazine a while back.
There are a few threads on here about it, but it was quite expensive.
Search for 'MS Designs bodykit' or similar in the mk2 Leon section.
 
Yes,but in the message write they have the front splitter for the Copa edition and the FR.
Price:199 €+shipping.