If you speak to Kevin then i'm sure he's love to help - they do quite a bit of work on local elises / exiges too.
Oh and I'd listen to other exhausts before plumping for the Miltek - it sounds nicer than standard but Caleebra's VSE and my Piper sound are MUCH MUCH nicer IMHO.![]()
I think mine has just broken in, sounds louder than ever

Streako you could also chat to Mark Henderson (MH Engineering) out at Inverurie. He has set up the geometry on loads of VXs (including mine and two4oneuk's) and does work on Elises, Caterhams, race cars and all sorts. http://www.mhengineering.co.uk/ for contact details.