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Magnaflow droning sound

Discussion in 'Performance and Tuning' started by jtt, Aug 15, 2011.

  1. Aug 15, 2011 at 6:23 PM
    #1
    jtt

    jtt [OP] Member

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    Justin
    Los Angeles
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    So I just installed a magnaflow exhaust on my 4x4 and around 3000 rpm there is an extremely loud drone throughout the cabin. I was wondering if the sound slightly decreases once it is broken in, or am I just s.o.l.

    Also does welding the muffler to the exhaust pipes decrease the noise level?
     
  2. Aug 16, 2011 at 10:06 AM
    #2
    skytower

    skytower Well-Known Member

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    Dave
    virginia
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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    You have found the resonant frequency of your exhaust, get used to it.
    Welding of the joint will only help it last longer, not change the sound(unless it leaks like crazy).
     
  3. Aug 16, 2011 at 10:24 PM
    #3
    jtt

    jtt [OP] Member

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    The only other thing I've done to the exhaust/intake is replace the stock air filter with the afe pro dry filter. I kept the exhaust exit behind the rear passenger side tire
     
  4. Sep 1, 2011 at 6:39 PM
    #4
    Big D

    Big D Member

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    daniel
    alabama
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    planet audio big bang 6.5 front doors sony 4channel amp kicker 6.5 subs rear doors
    I put the magna flow on mine and the samething happened, droning from hell. I'm gonna try a resonator, or some one told me a glasspack will do the job for half the price. I'm going to ask the muffle shop about it tomarrow. good luck with yours.
     
  5. Sep 8, 2011 at 10:54 AM
    #5
    jdtemple

    jdtemple Well-Known Member

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    Bay Area CA
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    Lift & Tires, in cab power outlets, Locking Bed Boxes, K&N
    I cant see you truck info from the iPhone interface. On my truck it is only noticeable on acceleration going up hill or when I get on the gas. Cruising at 65-70 I don't notice it.

    if your at 3k Rpms and on the highway, your probably going 80+ mph if you have a v6
     
  6. Dec 4, 2011 at 12:46 PM
    #6
    ourtoy

    ourtoy Member

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    kingston,washington
    volant cold air intake magnaflow offroad pro
    volant cai made my my drone go away. Love the sound of my magnaflow offroad dumped infront of the axle.
    Had afe dry filter with the charcoal filter removed
    originaly, had bad drone in the cab
     
  7. Dec 4, 2011 at 12:50 PM
    #7
    rcfreak201

    rcfreak201 Well-Known Member

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    well i mean if you guys really dont like your magnaflow you could trade me for stock :D
     
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