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Installed apexi ws2 exhaust...still freeway drone

Discussion in 'General Tech and Maintenance' started by BigBoy, Jun 27, 2005.

  1. BigBoy

    BigBoy Senior Member

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    Where could the low drone come from when im on the freeway? I had a loud fart can that got me the ticket. So i picked up the world sport. It sounds real nice and low, but that deep low drone is still there. Could this be caused by the fact that my dc 4-1 is severely dented and my cat is hollowed out?
     
  2. civicious

    civicious FüK-VTEC VIP

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    Gee, I don't know...where COULD that loud-ass noise come from? Hmmm.....
     
  3. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    It's definitely the fact that you're catless. Did the exhaust come with a resonator? Lack of a resonator will cause a drone as well.
     
  4. K2e2vin

    K2e2vin Senior Member

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    its definantly the cat. i have no cat(and no resonator) and it drones like hell on the highway. you should either replace the cat or have a resonator put it.
     
  5. xj0hnx

    xj0hnx I wanna be sedated VIP

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    WS catbacks come with a huge resonator in the B pipe. Mine has that same drone. Being that your cat is hollowed and not a straight shot, I would say that is definitely going to change the resonance.
     
  6. BigBoy

    BigBoy Senior Member

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    yea the ws comes with a resonator. Must be the hollow cat. Should i go with a carsound 2.5?
     
  7. jdmeg6

    jdmeg6 Senior Member

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    :thumbsup: :thumbsup: for the CarSound cat. I'd go with that.
     
  8. xj0hnx

    xj0hnx I wanna be sedated VIP

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    I had a CarSound 2.5....had. The element inside cracked, and I had to knock it out and replace with a test pipe :(
     
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