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  1. #1
    Join Date
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    Someone told me that if I took my cats out that the motor would either run lean or rich? Is this true? My tune doesnt have the cats delete as of right now, but all i have to do is make a call and get one on the way with it. But in the mean time, if I do my headers and no cats, it iwll just throw a code till I get my tune right? its going to run ok? not rich or lean but the same?
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  2. #2
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    all mine did was throw a code... i had no driveability problems at all... drove with it for about a week until i could get down to Allen's shop
    Quote Originally Posted by DamnYankee View Post
    lol...I wish you would never paint your truck...I bet it bugs them that much more that a primered up truck just soggied his Wheaties. good job buddy
    sprayedenali: i like catching, but not fishing
    DBTBSS: bring Tyler... we need someone to make fun of
    MidnightRider: your right im gay
    DamnYankee: my nana failed
    DamnYankee: confused...if it can't keep up to begin with, how can it keep up
    mitch cobb racing: ya, allen played with it for a while, HUGE difference

  3. #3
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    Allen told me to watch my A/F ratio when I ditch mine, but I am FI so that might be why.
    Gone, but not forgotten!

  4. #4
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    <div class='quotetop'>QUOTE(SCIV &#064; Dec 26 2006, 02&#58;12 PM) [snapback]77382[/snapback]</div>
    Allen told me to watch my A/F ratio when I ditch mine, but I am FI so that might be why.
    [/b]
    I dont have an A/F gauge.
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  5. #5
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    Naturally, it&#39;ll smell rich w/o cats, as cats are what help minimize as much fuel vapor potency as possible, thus helping "preserve the environment". I&#39;m running no cats now, and codes are set to not report for the #2 sensors on B1&2. You can try to lean it out if ya want, but it won&#39;t help the scent any. If you&#39;re really concerned about the rich/lean levels, get an AFR gauge. A Wideband will be one of my future purchases.
    Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph

  6. #6
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    <div class='quotetop'>QUOTE(1BADC10 &#064; Dec 26 2006, 03&#58;05 PM) [snapback]77390[/snapback]</div>
    Naturally, it&#39;ll smell rich w/o cats, as cats are what help minimize as much fuel vapor potency as possible, thus helping "preserve the environment". I&#39;m running no cats now, and codes are set to not report for the #2 sensors on B1&2. You can try to lean it out if ya want, but it won&#39;t help the scent any. If you&#39;re really concerned about the rich/lean levels, get an AFR gauge. A Wideband will be one of my future purchases.
    [/b]

    Im really not concerned about the smell. I just dont want to drive a few days while im waiting on my tune update and risk messing somehting up on the motor. Thats what i am asking, if its possible to mees something up on the motor before i get my update.
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  7. #7
    DBYRD Guest
    make a call to charlie have him send u the same tune without cats and be done with it. if ur tuned to run without cats and u run cats it isnt gonna mess anything up i wouldnit think. all that tune does is tell it not to throw codes so i dont see the problem there.

  8. #8
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    <div class='quotetop'>QUOTE(Allstar55566 &#064; Dec 26 2006, 03&#58;36 PM) [snapback]77396[/snapback]</div>
    make a call to charlie have him send u the same tune without cats and be done with it. if ur tuned to run without cats and u run cats it isnt gonna mess anything up i wouldnit think. all that tune does is tell it not to throw codes so i dont see the problem there.
    [/b]

    I already talked to him. He is gonna send me one. But i might hvae the cats done before the tune is done.
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  9. #9
    DBYRD Guest
    oh well i ran my 4.3 without cats for like a year with no tune, i think a day or two will be ine.

  10. #10
    Join Date
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    yeah if your not gonna do it for a long period of time and youll have a tune sooner than later i woul dgo ahead and do it... as for hurting an engine... man i hope it doesnt cause thats what i run on teh streets daily
    Quote Originally Posted by DamnYankee View Post
    lol...I wish you would never paint your truck...I bet it bugs them that much more that a primered up truck just soggied his Wheaties. good job buddy
    sprayedenali: i like catching, but not fishing
    DBTBSS: bring Tyler... we need someone to make fun of
    MidnightRider: your right im gay
    DamnYankee: my nana failed
    DamnYankee: confused...if it can't keep up to begin with, how can it keep up
    mitch cobb racing: ya, allen played with it for a while, HUGE difference

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