I AM looking to put my Subaru Forester on LPG. I have contacted a number of conversion companies and only one has said it can assist. The companies that cannot assist have said they have not done one before and their manuals do not cater for such.
IT'S best to phone the suppliers to find a system for your car, and then ask for their recommended installer, someone with experience with the system on the same model as yours. The Australian LPG Warehouse has a kit available for the 2002-2007 Forester.