Removing 'center' silencer (resonator)

Discussion in 'Engine' started by pharmed, Feb 19, 2012.

  1. pharmed

    pharmed Active Member

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    On a 230 kompressor...

    I'm talking about the box between catalyst and the backbox. Removing this and getting it replaced with a straight through pipe..

    Will it negatively affect performance? I'm guessing it will give it a gruntier sound..
     
  2. m2287

    m2287 MB Enthusiast

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    do it! It will sound better, if anything it would improve performance, allowing gasses to leave the exhaust quicker
     
  3. OP
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    pharmed

    pharmed Active Member

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    Won't run risk of making it more 'free-flowing' or losing torque etc?

    Also - Rough idea of the price I should be paying?
     
  4. m2287

    m2287 MB Enthusiast

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    Loads of people on here have done it, I did it to my CL55 AMG (but also took the secondary cats out at the same time) The only other performance mod ive done is K&N air filters and Mine now does 0-60 in 4.9 secs (standard is 5.6).
     
  5. BTB 500

    BTB 500 MB Club Veteran

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    I paid about £130 to have it done on my SL. That was a more complex job as the pipe had to be fabricated as a 'Y' shape, but it was about 5 years ago. So probably a reasonable ballpark figure for you.
     
  6. m2287

    m2287 MB Enthusiast

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    Sorry I paid £220 for mine last year!
     
  7. OP
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    pharmed

    pharmed Active Member

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    Thanks guys, I'll update if done!
     
  8. Shude

    Shude Hardcore MB Enthusiast

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    It will be more "free flowing" as the resonator baffles the air around to knock the noise and some of the speed out of it. Don't worry about losing torque, removing restrictions won't do this and especially not to a forced-induction engine.
     
  9. BTB 500

    BTB 500 MB Club Veteran

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    But presumably a more complex job than would be required for a 4-cyl 230k with a single pipe exhaust system.
     
  10. m2287

    m2287 MB Enthusiast

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    Yea way more, 2 pipes instead of one and with an x weld.. At a guess I would say £100 for a single pipe
     
  11. Will

    Will Hardcore MB Enthusiast

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    Worth considering the recent MOT changes when looking into exhaust mods?

    Not saying that this would fail, but I'd want to check :)

    Will
     
  12. BTB 500

    BTB 500 MB Club Veteran

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  13. Palmer

    Palmer Active Member

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    Dooo it :)
     
  14. OP
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    pharmed

    pharmed Active Member

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    Insurance is not an issue, I'm with a company that allows most modifications free of charge on my policy :)
     
  15. BTB 500

    BTB 500 MB Club Veteran

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    Mine didn't charge anthing extra, but you still have to remember to declare it :)
     
  16. m2287

    m2287 MB Enthusiast

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  17. OP
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    pharmed

    pharmed Active Member

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    Did mine today, sounds better but still needs the manifold fixed!
     

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