I think sooner or later they'll release the S1 exhaust
I bet that will be expensive
Any idea when will be available for the S1?
yes the milltek and scorpion have the valve fitted.Dose this have the exhaust valve
Nope, it's an Italian company! You should check the website!It sounds like how I imagined the armytrix to sound like but where can we have power motive fitted? is it a UK company?