Just got my 500 Madness Go Pedal installed on my 500X Lounge model with automatic transmission. I already have Go Pedals on my 2012 500 Pop and 2013 500 Abarth (both manual transmissions) and love it on those cars so I knew I would want one on this car as well. I love my 500X but didn't feel it was quite as responsive when I pressed on the gas pedal as I would like. Once the car gets going it is fine but it just seemed a little sluggish from the start. The Go Pedal has taken care of that! When I press on the gas pedal my 500X jumps to it just like my other two Fiats! This is the best investment you can make for 299.00 to improve the "performance" of your Fiat in my opinion. I was considering a cold air intake and a cat back exhaust but I think the Go Pedal is going to be good enough on its own. Love it!