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Thread: Removing Cats

  1. #1
    Join Date
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    I have been thinking of removing the magnaflow highflow cats that I have behind the gibson shorties. Anyone think this would be a bad idea? Would I lose any low end or gain any top end? Im sure if I did I wouldnt be able to tell anyway. Would I see any losses in quality of sound? Ive got gibson shorties to a flowdisaster super 40 that has two turn downs. Would it sound raspy at all? Can Allen fix it to where the SES light wouldnt come on after removing the cats?
    1951 3100
    1984 C10

  2. #2
    DBYRD Guest
    It'll sound raspy as hell, I ran the same setup without shorties and it didn't sound good IMO. You'll lose low end and gain high end I noticed that first thing. I'm not gonna have any cats with the 6.0, and it sounds ok right now. I think I'm going to run a full chambered exhaust system to get a hollow throaty sound(think LS1).

  3. #3
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    well remember what mine sounded like?? it has a rasp to it basically... i like the sounds... but thats me... i like running open headers and no cats, so im a little biased
    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

  4. #4
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    <div class='quotetop'>QUOTE(TxStVanWilder &#064; Dec 25 2006, 10&#58;08 AM) [snapback]77291[/snapback]</div>
    well remember what mine sounded like?? it has a rasp to it basically... i like the sounds... but thats me... i like running open headers and no cats, so im a little biased
    [/b]
    I like the sound of the f bodys and the mustangs. How would I go about getting that kind of sound out of my truck?
    Does your&#39;s sound simular to those?

    05 RC, LME 6.0, 243 Heads, LSA Rods, 11:25 Forged Pistons, Cam Motion Custom Grind, 4:10, Eaton LSD, Narrowed Rear-end w/ Chromoly Axles, Pacesetters LT's, SLP Loudmouth II Mufflers, Volant CAI, Yank SSTB3600, Bosch 42 lbs inj's, G-Force Tune, FLT Level 4 Trany, Belltech 2/4, Times: ?
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  5. #5
    DBYRD Guest
    i have a video I may can post of how Alan&#39;s sounds, but it will have to wait till my mom gets back home with our camcorder before i can post it. His trucks with make your heart skip a bit that&#39;s how loud it is, and it definitely sounds illegal, but it sounds good for a truck with no muffler or cats haha. I love how fbodys and gt&#39;s sound thats the sound I&#39;m going for on my truck when I do the exhaust. I think chambered exhaust is what makes it sound that way.

  6. #6
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    <div class='quotetop'>QUOTE(TxStVanWilder &#064; Dec 25 2006, 10&#58;08 AM) [snapback]77291[/snapback]</div>
    well remember what mine sounded like?? it has a rasp to it basically... i like the sounds... but thats me... i like running open headers and no cats, so im a little biased
    [/b]
    I have a V6. One Liter less than yours. Im sure mine wouldnt sound to great.

    1951 3100
    1984 C10

  7. #7
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    <div class='quotetop'>QUOTE(Gator &#064; Dec 25 2006, 10&#58;16 PM) [snapback]77326[/snapback]</div>
    I like the sound of the f bodys and the mustangs. How would I go about getting that kind of sound out of my truck?
    Does your&#39;s sound simular to those?
    [/b]

    mine sounds similar to an fbody around 2200-2500 rpm ... for some reason the engine becomes alive and LOUD AS HELL from then on... im running the Lt&#39;s ORY, with straight 3 inch back from the Y... i used to have about 3 feet of pipe and then a 5" exhaust tip that acts like a megaphone making it louder.... now i have about 6 foot of pipe to before the rear axle with the same tip used as my dump for a little bit more backpressure... it was too quiet without the tip IMO lol.... its loud... when i am hungover... WAY too loud... and im sure i piss off my neighbors at 2 am when i come home.... but i like it
    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

  8. #8
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    Dustin has a video somewhere... i dont have any WOT videos that you can hear my truck very well... ill try and get one sometime here in teh near future...

    i have a Burden Brothers and Hinder concert today at 1:30 in the radio studio and then a real big concert in downtown so i wont be able to do it today... maybe i can work something out tomorrow or Sat
    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

  9. #9
    Join Date
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    Baton Rouge, LA
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    Stock manifolds, no cats, dual exhaust w/ 2 magnaflow 18" muffs:

    First time at track with new motor



    First time driving with new exhaust (window down explains the drafty background noise)



    I am always told my sounds like a musclecar at WOT. I love mine at WOT for the sound, and cruising with low resonance. Thanks to Magnaflow&#33; Flowmasters have always seemed too noisy and annoying at cruising speeds. That&#39;s just my .
    Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph

  10. #10
    Join Date
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    Azle,TX
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    The only way to make our trucks sound like a mustang is to buy a mustang or transplant the motor....nothin else sounds like a stang.I saw one tues night that sounds mean as hell...then I hit second and couldnt here that pony behind me&#33;
    Vortec Performance Tuned
    LQ9 built 4L60 LTs and a billion miles on the speedo!

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