Has anyone tried installing an RX1N on a Raptor. I've been looking at them for a few weeks and was wondering how hard do you think it would be to put this on my 2005 660 Raptor. I saw a 700 raptor on ebay a while back with the gauge on and it looked good. I've never installed a tach before, but I think this might be something easy to do. It'd be cool to keep up with the mileage and all. https://www.pmtuning.co.uk/Koso%20tec%20page.htm