Well i dont know what thief has that kind of time on their hands to sit there with a hacksaw and try to saw that motherfucker off and use 5 blades while doing it. Or a thief that carries a torch around with them. Im pretty sure if they saw that on there they would just skip to the next car...Or just break in and steal your cd player and sub just like everyother thief.
there are other ways... faster. if they want the car. believe me it will not stop them.