08 si supplemental anti-theft methods.

[robtonet]

is there any consensus as to what supplemental anti-theft devices/methods are available in addition to the factory method of coded key??for my 08 si?-------

i would feel more comfortable with a fuel shut off or a remote device of some kind --i don't know what is available, what is proven, tested and recommended?? --any first hand information...like researched , bought, installed, cost, and effectiveness would be appreciated.....thank you, rob