I am not sure if this belongs in techinical but anyway.
I always need help identifying parts especially add ons or mods so just wndering if anyone has come across these type of exhaust before?


It is quite loud as there is no centre pipe and is straight through its not my cup of tea and intend on changing it soon but because I have not seen one before I wanted to ask what it was and what if any are the benefits of such a small unit
Thanks
Rob