Oh yeah, forgot to say the other problems that occurred with the kit.
Firstly, the hoses connecting up to the coolant system werent even tightened! So it took me a couple of weeks to figure out why the car was losing all it's coolant. Not only that, one nasty occasion coming through preston in traffic caused the car to overheat, almost getting over 100 degrees (due to the lack of coolant).
Now fortunately I am technically minded enough to pressurise the coolant system to see where the leak was coming from, and i wasnt overly surprised to see that it was coming from the lpg system's additional parts. Had I been an unsuspecting customer I could have had an engine seizure, engine fire, or worse???
What is so frustrating is that I chose warrington autogas because of their long list of satisfied customers. Unfortunately, it seems that paying them £1275 plus credit card fee isnt enough for them to turn out a decent job :-( at least in my case anyway.