the ignition is cast iron i believe but yea a simple hammer blow will break them, your exhaust sets off his alarm because it vibrates the chassis of the vehicle, a simple piece of spark plug porcelin (sp) will shatter the glass, if the windows are tinted thats even less noise and no glass would be found on the ground, i have had some of every kind of customer bring me their broken in cars, the installer said that he tried to push more security on the car owner and he refused in the end its a fucking honda, #1 stolen vehicle in america for like the past what??? 10 years you can actually goole "how to steal a honda " and get the lowdown. my friends type R eg coupe was stolen and stripped within 15 hours ( they found it 15 hours after it had been stolen) all im saying is that if a thief wants your shit he will get it some way and some how so make it as hard for them as possible, microwave sensor, extra shock sensors, 2 way pager, viper gps, back up battery, tilt sensor even extra sirens.