was wondering if anyones running this... or anyof the other tuners with the "driving coach".... from what i think i understand its gets all the parameters from the diagnostics port...if you running one of these which ones and how do you like it...also which is better? a tuner like the bully dog GT or mechanical gauges with a tuner... basically im trying to get some info... dont wanna waste my money...thanks guysburnout
