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Bradan 456 resonator delete pipes

Discussion in '456/550/575' started by BRADAN, Feb 10, 2014.

  1. BRADAN

    BRADAN Two Time F1 World Champ
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    Aug 29, 2009
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    BRADAN
    #1 BRADAN, Feb 10, 2014
    Last edited by a moderator: Sep 7, 2017
  2. tazandjan

    tazandjan Three Time F1 World Champ
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    Jul 19, 2008
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    Terry H Phillips
    Dan- Those look nice. Good workmanship. Big difference in exhaust music.
     
  3. GTS Bruce

    GTS Bruce Pisses in your Cheerios

    Oct 10, 2012
    684
    Orchard Park NY
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    Bruce Roche
    My 575 sounded much better with the Bradan resonator delete pipes. Then I switched the vacuum hoses so the cans are open all the time. Still to quiet for me. Going to pull the cans and put on Tubi rear straight pipes I picked up used before spring drive. I think this will do it for me but if not high flow cats are next. GTS Bruce
     
  4. GTS Bruce

    GTS Bruce Pisses in your Cheerios

    Oct 10, 2012
    684
    Orchard Park NY
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    Bruce Roche
    A Ferrari should not sound like a Buick.
     
  5. ttforcefed

    ttforcefed F1 World Champ
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    Aug 22, 2002
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    did i get those?
     
  6. tazandjan

    tazandjan Three Time F1 World Champ
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    Bruce- If you want loud, Novitec Supersports will do it. Too loud for me, so I sold them. You can get it as loud as you want without fiddling with the cats.
     
  7. BRADAN

    BRADAN Two Time F1 World Champ
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    Thanks Taz! I welded them on a turn table so I was able to get a nice bead going without stopping.

    It's not a major difference but gives the car some grunt.
     
  8. BRADAN

    BRADAN Two Time F1 World Champ
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    Thanks Bruce. Your crazy though going with full straight pipes! Missing the viper noise huh?
     
  9. BRADAN

    BRADAN Two Time F1 World Champ
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    BRADAN
    You crack me up. Yes you got those, we made them off your car!!
     
  10. LOLAF1RACER

    LOLAF1RACER Formula Junior

    Jun 2, 2007
    497
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    Andy
    Hey guys , I have a resonator from my 2002 575m # 129068 , sitting in a braden box in my basement if anyone needs one ? will sell for a resonable offer plus shipping
     
  11. ttforcefed

    ttforcefed F1 World Champ
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    Aug 22, 2002
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    oh nice glad i cld help
     
  12. GTS Bruce

    GTS Bruce Pisses in your Cheerios

    Oct 10, 2012
    684
    Orchard Park NY
    Full Name:
    Bruce Roche
  13. BRADAN

    BRADAN Two Time F1 World Champ
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    BRADAN
    I have someone that was looking for a used set a few months ago, I will point them your way. Did you see your 575 came up for sale at BMW dealer recently?
     
  14. BRADAN

    BRADAN Two Time F1 World Champ
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    BRADAN
    Thanks buddy. You need less cars so you can keep up!
     
  15. BRADAN

    BRADAN Two Time F1 World Champ
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    BRADAN
    Hahaha.

    5 sets left in stock. Thanks for the orders everyone.
     
  16. BRADAN

    BRADAN Two Time F1 World Champ
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    2 sets left in stock.
     
  17. MotoMeccanica

    MotoMeccanica Formula Junior
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    Aug 21, 2006
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    Calgary Alberta
    I'm have mine on the way, pretty excited to get them on the car!
     
  18. DONRON

    DONRON Karting

    Dec 21, 2012
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    Ron
    Good to see you posting again Dan. We miss all the pictures and updates
     
  19. BRADAN

    BRADAN Two Time F1 World Champ
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    Thanks Ron hows the clutch going? I have over 8,000 images to sort through and post!@
     
  20. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
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    Philip
    The straight pipes with the resonator deletes certainly wakes everything up Bruce. Interestingly, I ran the central resonator with the Tubis and it was too quiet. The resonator does provide a lot of sound attenuation.

    Dan, does the removal of the resonator have any impact on the dyno?

    Philip
     
  21. 360modena2003

    360modena2003 Formula 3

    Jul 11, 2009
    1,498
    when are you posting the dyno and sound video?

    Thanks
     
  22. BRADAN

    BRADAN Two Time F1 World Champ
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    Philip,

    On the 550/575 we saw 17-25 hp on average from resonator delete pipes. We have not ran a 456 before and after yet.
     
  23. BRADAN

    BRADAN Two Time F1 World Champ
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    When the weather clears up locally. Sound videos in a warehouse make a prius sound like a big block chevy.
     
  24. 360modena2003

    360modena2003 Formula 3

    Jul 11, 2009
    1,498
    Great - thanks.

    17-25 on the 550 is considerable - very interesting to see how the 456 will respond.
     
  25. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
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    Philip
    That's interesting, Dan, thanks for sharing.

    My SOTP said removing the resonator improved performance but you never know when it's accompanied by more noise whether it is just the increase in noise volume that's fooling the senses.

    I believe one firm claimed that modifying the headers was worth a lot (60-75?). Any view on this?

    Philip
     

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