Spoke to Custom Code today regarding their remaps and the significant discounts currently on offer on their website.
They are offering Stage 1 for Ł370 inc VAT for S3 (8P)!!
Tyats serious bang for your buck.

Quoted figures:
305-315 bhp

CC seem to come very highly regarded in VW circles too, so I was VERY tempted at the price.
That was until I found that I would have to make a 5 hr round trip to have the ECU reflashed everytime a service/warranty visit was necessary.
And if VW are anything to go by, they flashed the ecu on my Golf on every visit! (and there were many).

There is a `switch` in development however it will require VAGCom.

Anyway, it might be worth looking at for those who have a CC agent nearby.