Installing a catalyatic converter

I have a 93 Accord, the exhaust is stock and I need to replace the CAT. I found one but it is not a bolt on. The guy said I could just put some kind of clamps that he is saleing along with the CAT.. Just wondering will this work without welding.

those clamps make it bolt on, they are probably 'D' shaped clamps, that is what is holding my catback on. It should work fine. Worst case scenario, if you hear an exhaust leak later on down the road, go to meineke and have them tach-weld it for a few bucks.