 and get something called CatStrap. This is not a paid product placement, but it's one of the best ways to protect your catalytic converter from being cut out and stolen. It's essentially a physical barrier shield that locks your catalytic converter in place and is cut resistant to sawzalls, circular saws, even chainsaws, which is a bit egregious. By the way, it also has a self-powered 130 decibel alarm. It's about as loud as a commercial jet engine taking off 20 feet away from you. It goes off as soon as it's tampered with.