Thread: Drone with Borla & hi flows cats

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  1. #1
    Viper Owner
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    Jun 2008
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    Bavaria, Germany
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    Question Drone with Borla & hi flows cats

    Yesterday I picked up my 05'Commemorative from wintering at a Viper-shop and did the first 250mls for this year.
    I got some mod's:
    Hi-flow race cats, Borla cat back without X-pipes, K&N, urethan bushings, service and a SCT hi octane tune from RoeRacing.

    The performance is better and the snake feels more lively.

    But... I get lots of drone between 2,500 and 3,000 revs which doesn't mean the exhaust is too loud. No matter if top down/up, windows down/up.

    The drone produces ear pressure on the outside ear of the driver or passenger like at sea diving, up/down higher mountains or flying without good pressure balance.

    Any recommendations?
    Last edited by JoeCom05; 04-05-2009 at 02:03 PM.

  2. #2
    Enthusiast

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    Default Re: Drone with Borla & hi flows cats

    Drone is no good/fun....Jörg.

    Stop driving. j/k!

    Obviously, something is wrong - have the exhaust changed/modified.

    Will do a drive Monday/Tuesday afternoon though - will call ya!

  3. #3
    Viper Owner
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    Default Re: Drone with Borla & hi flows cats

    Borla = drone

    Corsa = no drone


    Change exhausts or live with it, unfortunately.

  4. #4
    Viper Owner
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    Default Re: Drone with Borla & hi flows cats

    Quote Originally Posted by Red Snake View Post
    Borla = drone

    Corsa = no drone


    Change exhausts or live with it, unfortunately.
    that's pretty much the truth from what i've seen.. I did use some vortex cones on a B&B junk exhaust with major drone, and it cut it in about half.

  5. #5
    Viper Owner
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    Default Re: Drone with Borla & hi flows cats

    The thing with the Corsas is their raspier note - quite a few like it but some like myself don't. I got the 08 exhaust catback from DC Performance used - worked out pretty well - it is louder than the stock 05 exhaust.

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