Engine Drivetrain 2nd Gen S Most liked posts in thread: I/C Muffler Delete Pipe Installed: Pics and Thoughts

  1. agranger

    agranger MINI of the Month June 2009
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    #2 agranger, Mar 12, 2012
    The perforated interior looks like the inside of a resonator... usually added to exhaust systems to change the tone of the output, not so much the volume.
     
  2. Redbeard

    Redbeard JCW: because fast is fun!
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    #3 Redbeard, Mar 12, 2012
    In the case of an exhaust the holes in the tube and baffle material would do a good job at reducing the effect of the pulses (note-making resonance).

    With a turbine, I'm guessing not so much. Which also leads me to the question for MINI. Why bother with the expense of this part when a straight pipe would do the trick and not really be any louder. Perhaps its a resonating sound that is more audible with the windows-up at highway speeds?
     
  3. Firebro17

    Firebro17 Dazed, but not Confused
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    #4 Firebro17, Mar 12, 2012
    While I don't have a turbo car, and this is not really on topic here, I can tell you that after removing the resonator from a JCW exhaust, it did'nt increase the interior noise at all. In fact, the car is quieter inside now than it was with the OEM MCS exhaust. I really do like the exterior sound with my new exhaust system, and cutting out the resonator and replacing it with a straight piece of pipe was very inexpensive.
     
  4. Jason Montague

    Jason Montague New Member
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    #5 Jason Montague, Mar 12, 2012
    :cornut:I replaced both Ingress and Egress Intercooler tubes in summer 08 on Margi(Jan 08 R56 MCS/JCWm) with Alta's Boost Tube Kit and she both sounds and performs better. Mini also put another odd sound device in the cool side/egress I.C. to engine tube that connects to the fire wall and into the cabin. (Yes, there are 2 sound suppressors/makers/changers on the R56 Prince engine) I guess(?) to put sound into the cabin("Hey she aint accelerating! Yeah but she sounds like she's accelerating and the customer won't know the difference":crazy::frown2:)? The Alta tubes deleted this(and the hot side muffler also) and the ambient engine purr/growl/burble sounds better now with the(double) delete. The Alta Boost Tube(s) kit are still going strong after nearly 4 yrs:Thumbsup:. The Alta (collapsible:eek6:) Turbo intake hose had to be replaced with the Alta rigid aluminum intake pipe after 18mos or so:mad2::mad5::nonod:(Alta really 'took it in the shorts' for a long time after this and some other problems. I hope that they are doing better now:Thumbsup:). I'm very happy with my current arrangement.:Thumbsup:

    Jason
     
  5. Mononoke

    Mononoke New Member

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    #6 Mononoke, Mar 18, 2012
    Thanks for sharing.