Ollie, its definatly worth buying, i brought mine from ebay next day delivery for around £150. http://cgi.ebay.co.uk/AEM-GAUGE-6-in-1-TYP...=item45eff60fa0 this is the guy. misterdan - i did mate, all you do is go under the car and mark around the 10 oclock position if your going in from behind, from the front its 2 oclock, after the flexi pipe. remember the sensor is going here so make sure its not gonna clash with the bottom of the car once its fitted. take off the pipe, get it drilled , get the bung welded, put sensor in, and plug and play. I shorted the wires as the wires we