My next alarm is going to be a viper for sure. DEI have a good range on the remote transmitters. Plus w/ the viper you can hook it up to pretty much anything.. sunroof, windows, remote start. U can make the windows and sunroof close automatically when u arm it. You can also add another remote when your run out buttons. I wanna see a car w/ air ride hooked up w/ a viper. You can have a seperate transmitter for the air! neat. I have an Avital alarms right now.