The exhaust system runs from the front of your vehicle to the back and require hangers to ensure that the parts and piping are held in place. Hangers are made of rubber and stretched between hooks in order to secure the exhaust system. The rubber also reduces noise and friction.
Smaller tips are raspy, whereas larger tips produce a deep sound, most exhaust tips connect directly to the end of the exhaust pipe, some simply use set screws or clamps to hold them in place, but you might have to do some additional welding.
Can you drive with a loose exhaust?
While you can technically drive with a broken exhaust, it's neither safe nor legal and poses a number of issues when you're out on the road. Whether your exhaust is simply cracked, is partially hanging off or has fallen off completely, it's an important part of your vehicle which needs your immediate attention. In a pinch you can use bailing wire or plumbers metal strapping with nuts and bolts.