LPG vs NOS injection? (TDI)

[Redstorm]

Does anyone on the forum have any knowledge or experience of LPG Injection (fumigation) and how it compares in both cost and performance? I have read that LPG not only provides a power boost (like NOS) but also icreases the percentage of diesel burnt from around 75% to 90% thereby increasing economy and keeping the engine cleaner. Has anyone got more inf or experience?

I am talking about adding this to a DIESEL not a petrol motor

Comments please

Also links to suppliers equally appreciated

Thanks Again

PS - Anyone know if anyone provides a remap solution with switchable programs i.e Sport and economy?