The experience and craftsmanship acquired over many years in the manufacturing process (attention to detail and obsessive pursuit of quality) of a Yoshimura exhaust can never be replicated, even by the best machines.
Yoshimura presents the R11 motorcycle silencer:

• R11 silencer with blue titanium finish
  
• Single outlet on the silencer
• Conical design
  
• Carbon end cap
• CE/ECE approved (Euro 4 standard)
  
• Richer and more aggressive exhaust sound
• Warranty: 1 year
• The Yoshimura silencer is specific to each motorcycle