Thanks for the reply, yeah MRC would normally be my first shout for anything RS related, don't mind paying their prices and they did lots of work on & mapped my S2, really happy with it.
As the A8 is mainly used as a chauffeur car tho, it was the 300 - 350quid Revo/Superchips re-maps that caught my eye. if I was going "bigger" power on the A8, I'd def be off the Banbury again tho.
Cheers