birdy - its a bit of a tricky fit, but they should be able to do it, i was talking to a guy at street dreams (wiredone) on the weekend, he was saying that he needed some custom piping for it, cos the powere steering pumps, and other stuff on that side are in a different location to the original hiboost kit
he said cost would be about $8500 for an sp20 which is pretty cheap, esp when you think of how much it would cost direct from hiboost!!!