What do people think of these,



What is the advantage of buying a Piper / Magnex backbox to one of these jap cans?
Also for best performance should you keep the silencer in the middle pipe (Pipe before the backbox).



What is the advantage of buying a Piper / Magnex backbox to one of these jap cans?
Also for best performance should you keep the silencer in the middle pipe (Pipe before the backbox).



