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Thread: ZHP Exhaust

  1. #1

    ZHP Exhaust

    Currently running a dinan muffler without rear resonator. It drones and has a lot of rasp. Would putting an x pipe or the rear resonator back in decrease this?


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  2. #2
    Rasp is a tendency for these motors. Adding the resonator will help, but you lose volume.

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  3. #3
    Join Date
    Dec 2019
    Location
    Burlington, NC
    Posts
    150
    I'm running no resonators at all with an aFe muffler and I get no rasp. I'd say you need a different muffler.
    330i Base | Mysticblau | Slicktop | 6MT

  4. #4
    Join Date
    Nov 2016
    Location
    Charlotte, NC
    Posts
    2,726
    Do you have headers? The cats are the real rasp killers

  5. #5
    Quote Originally Posted by ZHPizza View Post
    Do you have headers? The cats are the real rasp killers
    Stock headers only muffler and rear resonator delete. Would you say put the rear resonator back in vs x pipe?


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  6. #6
    Join Date
    Feb 2019
    Location
    W/S, NC
    Posts
    125
    If you want it more quiet you need to put the resonator back in. An X pipe will do nothing to quiet the sound

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    - 2005 Titanium Silver 330i ZHP 6spd -


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