I didn't think you could get a good 2 way alarm for under 400 bucks but I guess I'm wrong. Viper alarms are probably the best you'll need just make sure you get someone who is competent at setting it up. My alarm is overly sensitive right now and high winds shake the car just enough to set it off. I'm pretty sure you can buy alarms that have built in turbo timers as well, just a thought if you didn't already have one. If you get a 2 way alarm find out what range they are good for and make sure that they aren't over-exaggerating the distance just to try and sell it.