The exhaust system on a motorcycle and dirt bike work the same as any other system you would find on a car or truck. The way the gas comes out of the muffler is much like any other system. There is a combustion chamber in the engine, from which the exhaust pipe is hooked onto. The pipe carries the gas through the exhaust pipe and out through the muffler. Some people prefer to have a noisy bike, or something that would cause heads to turn as they drive by, they like to take off the muffler. When there is no muffler in place, it makes the bike sound much loader as the engine revs through. You could add some extra performance to your bike without increasing the noise level by adding baffles.
Motorcycle exhaust baffles can easily be made at home, but some people prefer to buy them from the aftermarket shops. All baffles are the same, so there is no reason to be keen on the one you want to get. In order to make your own motorcycle exhaust baffle, you will need a vise, pliers, metal screws and shelving brackets. Small shelving brackets should be fine. To begin, start by adding about one inch of the bracket to the vise. Hold onto the other end of the bracket with pliers. With the end you had the pliers on; you need to bend the brackets ninety degrees back. You will not need to drill a hole on the end that was attached to the vise. Keep this in a safe place, as you will need it for the exhaust pipe.
Take up the exhaust pipe and drill in two holes from one end of the pipe. You will now need to put in the shelving bracket into the pipe. Align the holes and connect them with the metal screws you had from before. One pipe should have at least two shelving brackets. You should now do the same thing to all the exhaust pipes you have connected on your bike. If you just do it for one pipe, it will not make a major difference. Motorcycle exhausts baffles need to be placed correctly in place, so always try testing it out. If you find that making your own would be too much of a task, you can purchase manufacture made motorcycle exhaust baffles. Your local mechanic or garage would be able to make motorcycle exhaust baffles as well, so that is a solution.