Just bought one of these & wanted to say (incase u did not know) these meters are awesome, as all of us modify our motors we always have to retune our air/fuel ratios afterwords & dyno tunes are & can be very expensive (trust me I know) this thing takes the cake, for only $350.00 you can tune your air/fuel curves on as many cars as you want & better than what a dyno would as you can not only see what your ratios are in real time but you can record runs & transfer to your computer for anlaysis of realtime driving conditions not simulated (especially usefull for Ram Air setups) I spent $800 on dyno tunes & still was not able to get the performance or response time from what I was able to do with this LM-1 Meter, I am very happy with my purchase & just wanted to say for those who either did not know or don't have a dyno tuning shop in there area, this thing is easy to install & does not need to remain hooked up after a tune & if you ask me is something everyone should have, I know I sound like a sales men but I'm not, I'm just a very happy individual who stumbled upon & found this awesome meens now of correctly tuning my car 

