I'm thinking of trying out one of the cheaper chips available on ebay in an attempt to increase the economy of my Freelander 1 Td4 (not much I can do with the 110 so I want to have a go with the Freelander). Just wanted to know if anyone had any experience with this, and whether I need to consider uprating anything else like the intercooler or fitting silicone hoses?. I'm not really interested in the power increase and so won't be driving it hard, I just want to improve economy, so is it neccesary to uprate these?. Any advice appreciated.