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 Hepta Force motorcycle silencer:

• Hepta Force silencer in stainless steel finish
  
• Stainless steel outlet
  
• CE approved
• Weight: 4 kg
  
• Exhaust sound is rougher and more aggressive
• Warranty: 1 year
• The Yoshimura silencer is specific to each motorcycle