Here's a little tidbit of information regarding the subaru security upgrade and most aftermarket alarms for that matter.
1) starter kill relays do nothing for a manual transmission, you can push start it.
2) the subaru security upgrade install instructions is easily accessible on subaruparts.com, this makes it easy for someone to find and disable
3) to prevent your vehicle from being push started either install a toggle switch, or immobilizer relay on the ignition or fuel system.
4) dei makes the directrack gps tracking system that can be interfaced with any dei esp2 compatible alarm or any aftermarket alarm system.
to make the dei esp2 & directrack more effective, install a digital tilt sensor that can detect change in pitch angle of the vehicle. the sensor will notify the alarm which in turn notifys you via the directrack system. notifications can come in page, cell, internet, email etc...
not sure how prevalent wrx thefts are in the capital region, but in nj/ny wrx thefts are rampant. if you spent a lot of time and money on your vehicle is it worth it to park in places where you have no control over?
for additional security information please check:
http://forum.dreamspeedonline.comnetZ