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550 X pipe H pipe or Straight pipes

Discussion in '456/550/575' started by SE16, Dec 25, 2019.

  1. SE16

    SE16 Karting

    Apr 13, 2007
    107
    UAE and London
    #1 SE16, Dec 25, 2019
    My 97 center muffler is needing replacement. I have no interest in more noise or performance but feel that the middle muffler is a bit superfluous.

    Which option is recommended for a replacement of the muffler ? X / H OR straight to keep the most optimal balance between good noise (no droning) and performance?

    Thanks and merry Christmas
     

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  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    33,046
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #2 tazandjan, Dec 25, 2019
    If you do not care that much about hp, then an X-pipe or one of Fabio's H pipes will eliminate the drone and still increase hp. Max hp would be to do what the factory did and replace with straight pipes. All 575Ms from late Summer 2003 came from the factory with straight pipes.

    Fabio's H pipe will give more hp than an X-pipe, with a nice sound, too.
     
    308 GTB likes this.
  3. SE16

    SE16 Karting

    Apr 13, 2007
    107
    UAE and London
    #3 SE16, Dec 25, 2019
    Thanks. Do the 575 drone?
     
  4. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    33,046
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #4 tazandjan, Dec 25, 2019
    Depends on the exhaust.
     
  5. Fiat Phil

    Fiat Phil Rookie

    Apr 15, 2015
    8
    Bay Area
    Full Name:
    Phil Schmadeke
    #5 Fiat Phil, Jan 27, 2020
    I have X pipe with X-OST mufflers on 550. No drone. Good sound. Can talk in car at any speed. Mufflers are valve delete.I even put stock mufflers on for concourse judging. No added noise.
     

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  6. tritone

    tritone F1 Veteran
    Silver Subscribed

    Dec 8, 2003
    5,332
    On the Rock
    Full Name:
    James
    #6 tritone, Jan 27, 2020
    Have an SS X-pipe from Phil Hughes in OZ. Never mounted/NIB. Very good price for an F-Chatter.......:D
    PM me if interested....
     
  7. SE16

    SE16 Karting

    Apr 13, 2007
    107
    UAE and London
    #7 SE16, Jan 28, 2020
    I went with a custom made H pipe in the end and its sounds different at idle but and above 90mph. Its no louder, just deeper and I like it! Additionally, it has no drone..
     

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    308 GTB and F456M like this.
  8. SE16

    SE16 Karting

    Apr 13, 2007
    107
    UAE and London
    #8 SE16, Jan 28, 2020

    Whereabouts are you based?
     
  9. vee12

    vee12 Formula Junior
    Silver Subscribed

    Nov 2, 2008
    261
    Atlanta
    Full Name:
    Les
    #9 vee12, Jan 28, 2020
    Is your car a 550 or 575? What rear mufflers are you running?
     

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  10. SE16

    SE16 Karting

    Apr 13, 2007
    107
    UAE and London
    #10 SE16, Jan 28, 2020
    It’s a 550 on standard set up
     
  11. Dm993tt

    Dm993tt Rookie

    Aug 19, 2019
    36
    Full Name:
    David
    #11 Dm993tt, Feb 15, 2020
    2nd Fabio's stuff
     

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