Professional LPG conversions in the Southeast -- any recommendations?

[BackOut]

I've been ruminating about this for over a year. V-Power's now over £1.50 a litre and it's getting daft, I do about 13k to 15k a year at about 26.5 mpg (real mpg from past 18 months' records, not off the computer which seems a bit optimistic!) Lpg has got to be worth it. Any recommendations out there for a good make and a good installer? I'm not interested in cheap stuff, it's got to work well and be reliable, and above all I don't want to **** up my beautiful Subie. Any info please, your experiences, good, bad, whatever!

[SMS8464]

We are thinking of converting our Imprezza to LPG, how did you get on with yours ??