Audi A3 special edition

Anyone want this 350 ono Audi A3 special edition 1.6 petrol, has a month or 2 mot still, think its misfiring Ive changed spark plugs and coil pack sounds better but still not right, no longer needed so dont want to do any more to it has battery cat alloys all still on car 350 Ono- location - bude Cornwall