OSIR Exhaust system

Spending 4 years of development, six versions of design refinement and test drive them daily for durability. Its time to let them out to our customers

We built them with ASPEC under the highest craftsmanship
We smoothed them out on each corner
All the piping are retain in the same diameter for high flow
We tuned them with a deep tasteful note
You can choose either Stainless steel or light weight Titanium that suit your need

We will continue to develope more exhaust systems on our selected vechicles

  • Ex TTRS
  • Full Titanium system for TTRS weight 13kg (Factory 33.3kg)
  • Titanium CAT BACK system weight 10.5kg (Factory 26.5kg)TTRS Note
  • Ex RS5
  • Titanium CAT BACK system for RS5 weight 15.5kg (Factory 23kg)RS5 Note
  • Ex A1 QUAD system for 1.4 engine
  • Stainless steel only

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