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smart fortwo Performance Exhaust by SILA Concepts - 451 Model - Side Exit

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Time to upgrade the exhaust in your smart 451 model?

SILA Concepts manufactures the #1 selling aftermarket exhaust for the smart 451!

The SILA Concepts line of smart car exhaust systems offers the smart owner a great quality, trouble free exhaust system that offers a higher level of performance over the factory restrictive design. 


  • Direct Replacement Part
  • No modifications needed
  • Improved Performance - HP &TQ Gains
  • Improved Sound 
  • Custom Designed Muffler
  • Manufactured of T304 Stainless Steel
  • Flex Pipe Incorporated in to the design for less vibration
  • Mandrel Bent for even flow
  • High Quality TIG Welds
  • Properly Designed Hangers
  • Polished Exhaust Tip
  • Designed for the 451 model smart fortwo ('07-'15)

Also Available in a Center Exit Version - Check other listings

We have been installing these units at our facility for years and have and continue to use them on our own smart cars. We have been very pleased with the nice sound, great quality and the added performance we have felt on our own smart after installing these unit.