Termignoni exhaust system for the Yamaha MT-09

termignoni exhaust yamaha mt-09
Termignoni exhaust system

General

Caution!
In this article I only describe my own approaches. I do not give any warranty that my data is correct.
Working on your motorcycle is at your own risk!
In case of doubt please contact a qualified workshop.

I bought this Termignoni exhaust system to change the sound of my Yamaha MT-09. This exhaust system comes with a Vehicle Type Approval, if the CAT and dB-eater are installed. The position of the lambda probe on Termignoni and Yamaha exhaust is quite similiar so that the installation in the Termignoni exhaust is easy.

item delivered termignoni exhaust yamaha mt-09
Items delivered Termignoni exhaust system

The exhaust system comes with all needed bolts and mounts. There is a hook for the tension springs and a dB-eater for the race track delivered as well. The installation manual has pictures and is well written.

 

Note about weight: The original Yamaha exhaust system weights about 7,8kg (17,2lbs) and the Termignoni exhaust system weights about 5,5kg. (12,1lbs).

Installation

For the installation you should stick to the installation manual. It is important to not tighten the bolts until the whole exhaust system is assembled. This could lead to unwanted tensions in the exhaust system. For tightening use the prescribed torques. But first the original Yamaha exhaust is dismantled by loosening the nuts and the lambda probe.

yamaha exhaust mt-09
Dismantled Yamaha exhaust

Next the Termignoni manifold parts are mounted. Mind that the pipes have fixed positions indicated by their number (see the installation manual).

termignoni exhaust manifold yamaha mt-09
Numbered manifold pipe
termignoni exhaust manifold yamaha mt-09
Mounted Termignoni manifold

After that the collector pipe is installed. It is shoved on the manifold and fixed by the tension springs. If a vehicle type approval is needed remember to put the CAT into the collector pipe.

termignoni exhaust collector pipe yamaha mt-09
Collector pipe Termignoni exhaust
termignoni exhaust collector pipe yamaha mt-09 cat
Collector pipe with installed CAT

After the Termignoni holder is bolted to the original Yamaha exhaust mounting point, the muffler can be installed. If a vehicle type approval is needed remember to put the dB-eater into the end of the muffler.

termignoni exhaust muffler yamaha mt-09
Installed Termignoni muffler

Finally all bolts are tightened with the prescribed torques. To prevent finger prints and dirt to be burned onto the exhaust system, I recommend to clean and degrease the whole exhaust system before putting it into operation for the first time.

Conclusion

After over 1000km (621,4 miles) of riding I still like this exhaust system a lot. The sound of the Yamaha is very different and much louder. Concluding here are some comparison shots for you:

yamaha exhaust mt-09
Yamaha MT-09 with original exhaust system
termignoni exhaust yamaha mt-09
Yamaha MT-09 with Termignoni exhaust system

yamaha exhaust mt-09
Yamaha MT-09 with original exhaust system
termignoni exhaust yamaha mt-09
Yamaha MT-09 with Termignoni exhaust system

yamaha exhaust mt-09
Yamaha MT-09 with original exhaust system
termignoni exhaust yamaha mt-09
Yamaha MT-09 with Termignoni exhaust system

yamaha exhaust mt-09
Yamaha MT-09 with original exhaust system
termignoni exhaust yamaha mt-09
Yamaha MT-09 with Termignoni exhaust system

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