Why would someone saw off the catylist convertor

Hello, the title of your question doesn't match the content - so I'll address both. First, catalytic converters fetch good money for scrap metal components within them. Ones that are "easy" to get to are cut off in under a minute and are easy pickings for thieves. There has been a recent increase in theft,, but it's always been a problem. Second - there are way too many concerns listed to try and address. You simply need to develop a relationship with a shop near you who can address your concerns point by point and in order of importance and intended investment to resolve your concerns if you should choose to do so. www.repairpal.com/repair-shops