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  1. #1
    Jr. Mechanic
    Join Date
    Apr 2010
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    Ortonville MI
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    136

    Default Exhaust specifications. THIS IS NOT ANOTHER WHICH EXHAUST SOUNDS BETTER THREAD!

    I am planning on changing the muffler on my truck. I need to know what size the pipe is before the muffler? I have been told that its three inch until the muffler then comes out of the muffler at 2.5 but I am not for sure. Does anyone know for sure what size it is. I am planning on running a Flow super 44 3inch in 3 inch out single three inch pipe same location as stock. Thanks for the help guys.

    07 NBS Crew cab SLT 4x4

  2. #2
    Jr. Engineer hundojoe's Avatar
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    Feb 2010
    Location
    Elk River, Minnesota
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    210

    Default

    You are correct, Your truck has a 3" inlet and 2.5" out, but why do you want a 3" out single pipe? Just being curious.
    1999 Silverado Regular Cab Short Box
    Black on Black, Line-X sprayed in bed liner
    5.3 with K&N CAI, Texas Speed 220/220 cam with 112 deg LSA
    Texas Speed computer Tune
    American Racing Headers with Cats
    4.11 gears front and back, with Eaton rear posi
    Flowmaster 40series true duals
    16X8 American Racing Nitros with 305/70/16 Goodyear MTR's
    285's in the pic



    If it ain't broke...........Give me a minute!

    Im not completely useless, I can be used as a bad example...

  3. #3
    Jr. Mechanic
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    Apr 2010
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    Ortonville MI
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    Default

    Quote Originally Posted by hundojoe View Post
    You are correct, Your truck has a 3" inlet and 2.5" out, but why do you want a 3" out single pipe? Just being curious.
    Re leave some back pressure. I replaced my air filter with a K&N. I am sure I will gain some MPG with the three inch. Plus I have had duals before and feel that the NBS trucks look better with less. So I am going to hide the pipe.

    07 NBS Crew cab SLT 4x4

  4. #4

    Default

    Try calling Flowmaster, they may have a direct replacement for your truck.

    ---------- Post added at 09:08 PM ---------- Previous post was at 07:36 PM ----------

    Hey FarmerDave, I looked on Flowmasters website and it looks like part # 53072 is a direct replacement for your truck. Its from there 70 series.

  5. #5
    Jr. Mechanic
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    Apr 2010
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    Ortonville MI
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    Default

    Quote Originally Posted by silveradotrailblazer View Post
    Try calling Flowmaster, they may have a direct replacement for your truck.

    ---------- Post added at 09:08 PM ---------- Previous post was at 07:36 PM ----------

    Hey FarmerDave, I looked on Flowmasters website and it looks like part # 53072 is a direct replacement for your truck. Its from there 70 series.
    Thanks, I was leaning more towards the super 44 or 40. I will look into what you found also though.

    07 NBS Crew cab SLT 4x4

  6. #6

    Default

    nice truck!! i just did a exhaust job on my truck not too long ago...i cut my exhaust off right before the rear tire and kinda side piped it...sounds mean and clean...not too loud either and still running the stock cats...didnt cost me anything except a hack blade..lol...but pro 44 or 40's do sound really good with long tubes
    2004 Chevy Silverado LS Ext Cab
    auto, 4.8L, 190 HP (dyno'd)

  7. #7

    Default

    Heres the series 40 muffler for yor truck, part# 953047.

  8. #8
    Legend Mean_Green_95's Avatar
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    Apr 2009
    Location
    Baton Rouge, Louisiana, United States
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    1,170

    Default

    I prefer the 40's over the super 44. I have a super 44 on my Sierra and it has way too much resonance and not enough "bite" to it for taste.
    2010 Equinox LT
    2.4, 6 speed auto, power lift gate, remote start, bluetooth, xm.

    1995 Cheyenne C1500 ext. cab(my baby, my first truck)
    5.0, 5 speed, Silverado appearance package, power nothing, bucket seats and console Silverado, painted black interior, eBay halo headlights, eBay chrome tails, eBay cai, dual Flowmaster 40's w/no cats, 15x7 American Racing Hopsters, Walmart fog lights, SS mirrors

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