This may seem far fetched but I was wanting to rip off the stock cat back and just let the car run....My buddy did this to his little pony mobile and it sounds really goodn and hella loud...But I need some opinions on this...can I get some help??

So basically running open pipe from the cat? Not far fetched, though expect to get some exhaust gas leaking into the cabin because it will be exiting underneath the cabin. It will be loud as all hell though, and sound pretty unpleasant, but thats just my taste. If you were going to do this, I would suggest getting a cutout, which basically allows for the same thing, but you still have your exhaust on to pass inspection, and also you can cap the cutout in case you get tired of it, and don't have to put the exhaust system back on.