If anyone woul like some feedback from their engine the garmin Ecoroute tool works with my 2010 water-cooled bay. I have rpm, engine coolant temp, speed, engine load and intake pressure. It costs 100 quid on top of a compatible garmin satnav, it also has lots of other fuel economy type features as well. It plugs into your obd1 port under the dash. Plug and play!