The company Two Brothers produce exhausts to fit a range of vehicles. Generally, these exhausts fit onto vehicles such as motorbikes, including models such as Kawasaki.
Two-brothers is a brand of aftermarket exhaust systems, mufflers, and more. An exhaust system is tubing used to guide reaction exhaust gases away from a controlled combustion inside an engine.
I would say it is the exhaust system.
Research has shown that a Hayabusa is a motorcycle that is produced by Suzuki. One can purchase these exhaust systems from Amazon, eBay and Motorcycle Superstore.
the spent exhaust gas goes out the exhaust
Cleaver Brooks produces products such as boilers, burners, water systems, and exhaust solutions. Cleaver Brooks also produces heat recovery systems such as a stack economizer.
While stock diesel systems are very loud they are not the loudest type of exhaust you can get. To get an exhaust that is extremely loud you're going to need to go with the custom or bolt on route.
Although I do not know much myself regarding exhaust systems, I have found that there is a wealth of information online. You can find information here repairandshare.com/exhaust-systems/ as well as here vividracing.com/catalog/exhaust-system-information-i-39.html .
Dual exhaust systems are systems in cars that have two mufflers and two exhaust pipes. This system is called a dual exhaust system, or a twin exhaust system. It can be installed on a vehicle after market.
There are many places that one can find what types of motorcycle exhaust systems are legal in Canada. One can consult the government website for the Department of Motor Vehicles to review their laws and bylaws. As well, motorcycle sites such as WebBikeWorld would be able to provide this information.
Jetex is well known for performance car quality exhaust systems. These are available from car garages that offer upgrades or customisation of vehicles or straight from the Jetex website.
If you want to purchase an exhaust system you could go to a place like autopartswearhouse.com. Or you could look up exhaust systems of craigslist to see if there is anyone near you selling an exhaust system.
Some manufacturers of cat back exhaust systems are Flowmaster, Banks, Gibsons, Corsa, Invidia, RBP, Pacesetter, etc. These manufacturers provide different models of car back exhaust systems.