This page is all about aftermarket exhaust systems for the Hayabusa. Since I'm shopping for one for my new Hayabusa here's what I came out with.

There are arguably two main types of exhaust systems you can get for the Hayabusa (or any other motorcycle) the easy slip-on replacement or the full exhaust system.

What are Slip-on exhausts

The slip-on exhausts as the name implies is just a replacement of the 'cans' or the mufflers. None of the pipes or headers etc... are changed. Replacing the original exhausts is quite a common enhancement for various reasons. However most of use choose to do this is mainly done for looks first, sound second third for performance and lastly to replace damaged exhausts.

Many manufacturers claim some performance gains and weight savings. In most cases with electronically fuel injected engines you do not need to do any ECU changes - in most cases. Note that manufacturers are increasingly including pollution control equipment as part of the exhausts...

However I don't know what the law says in all countries as to whether they are legal or not. Common sense says that slips-ons should be perfectly legal in all countries - since the muffler replacement industry is common worldwide. The authorities may take offence if they are too loud?

There are lots of manufacturers to choose from and certainly lots of different styles. It is only my opinion that Yoshimura are the best - purely because they partnered with Suzuki for their racing models. I'm also being pointless by saying that their logo still looks cool! The next brand I would consider are the Two Brothers Carbon fibre models and their web site is also full of useful information to help you decide which model to chose from. Other brands D&D, Muzzy all look good too!

Remember don't buy a slip on because it's cheap - buy it because you genuinely like the look of it and the sound! Prices of used versions of certain models are also good - but also be aware of their condition.

Full exhaust systems

A full exhaust system replacement as it names applies is the complete change from the front of the engine to the mufflers. This is not recommended you intend to extract every last horsepower from the engine. The ECU will need to be enhanced or replaced too to ensure that the engine runs properly.

There will be legal issues if you chose to replace the full system since it usually involves the removal of all the pollution or emissions equipment. So this is usually done for race track activities.

Just remember a production Hayabusa is capable of mid 9 sec quater mile times. Yes like any any motorcycle capable of that sort of performance requires a certain level rider skill and practise to achieve but lots of people can do it.