lol i did brush a few jumpsVTRDark wrote: ↑Sun Nov 26, 2017 3:16 pm Think of it like a rudimentary EXUP valve which creates backpressuere at lower RPM's giving you more torque To see another example with twin exhausts and how they do it, yes it's a Harley but the principle is the same Harley Davidson Dynamic Exhaust System Patent but this is exhaust design / theory so there is no right or wrong way to a degree unless you are good at maths and understand flow dynamics and have a computer brain that can create simulations in your head etc during the design process.
Fabio you probably riding your bikes like your in the Grand National.
Restricted exhaust as standard???
Re: Restricted exhaust as standard???
the older i get,the faster i was