There is another exhaust firm in the Salsibury area, who I think are still going. Torque Technique at Wilton near Salisbury - they seem to have good reports.
May be worth a call?
Thank you chaps - appreciate the input and recommendations.
Steve - I see you don't live far from me! That makes two Twilight V8's in the locality! (I assume yours is the one that was featured in the press back in 04/05?)