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which muffler?

This is a discussion on which muffler? within the Exhaust forums, part of the Performance category; i have a 99 z71 extended cab with a 4.8. was wondering what muffler to use? i will be going ...

  1. #1
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    Question which muffler?


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    i have a 99 z71 extended cab with a 4.8. was wondering what muffler to use? i will be going with a 3 inch from the cat back with a single in dual out muffler. was thinking flowmater super 40 or magnaflow or even borla does anyone have a sound clip with that engine size? doesnt matter what muffler you have just would like to hear some sound clips of what my truck would sould like. i already have went to borla, flowmaster, and magnaflow websites but i would like to hear it on my truck. i will also have it dumped, but not sure if haveing it dumped will have a sound difference than if i ran tail pipes. i have subs in my truck so i dont want the exhaust to drone it out when im driving down the highway but when im putting around town i want it to sound really mean.

  2. #2
    - Luke 1989K1500's Avatar
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    Re: which muffler?

    I really like the sound of Borlas on the nbs'. :dunno;

    I have bullets but they are really loud. And I wouldnt dump the exhaust. Esp not with Flows.
    2001 rcsb Z71 06 clip, lowered, 6.0 LQ9, p&p 241s, cam, PI3600, LPP long tubes, etc. Tuned by TJ of Baker Engineering Inc - SOLD
    1989 rcsb 4x4, solid axled, HP44/14ff, 4.88s, 35s/20s

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    Re: which muffler?

    why not dump the exhaust? and why not with the flows?

  4. #4
    buildup in progress bretsk2500's Avatar
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    Re: which muffler?

    Quote Originally Posted by Z71_Offroad
    why not dump the exhaust? and why not with the flows?
    it makes the exhaust louder, increases droning and can rot your bed out. Flows are prone to droning anyways, so why make it worse. my flow super 40 has duals out to the rear and it doesn't drone, IMO.
    02 K1500 Z71 Avalanche bone stock
    88 K2500 350 TBI, 10" Edelbrock OE, Ultimate TBI, Summit 1102 cam, MSD 8.5mm wires, built 700-r4, BFG AT/ko's, 3.73's, Flowtech Afterburner Headers, Magnaflow 3" cat, Flowmaster Super 40.

    To be ordered: Holley 300-66 intake

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