T600 Grass Burner muffler to stacks

Discussion in 'Kenworth Forum' started by true blue, Jan 30, 2015.

  1. true blue

    true blue Medium Load Member

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    I've got a '97 T600 with a grass burner muffler underneath that I'd like to possibly convert to a dual exhaust system with a better flow-through muffler for more power and better fuel mileage. I have a full-width headache rack on the back so I guess I'm looking at going up the sides behind the doors or even better, is there a way to mount the pipes down beneath the side-skirts with turnouts? I'll be trying to do a lot of research on this on Monday or Tuesday, but thought I'd throw it out there anyway, just in case anyone's already been through it.
     

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  3. double yellow

    double yellow Road Train Member

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    External side pipes may add power, but they will cost you mpg
     
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  4. snowwy

    snowwy Road Train Member

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    The reason for the weed burner exhaust is air flow..shorter pipe to travel
     
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  5. magoo68

    magoo68 Road Train Member

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    Do it for looks only .. Every bend you have just adds restriction my guess is at best you may break even on flow with hi flow mufflers but I'd doubt it.. Most likely you will lose a couple tenths
     
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  6. eeb

    eeb Heavy Load Member

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    The ones I've seen have used a section of square tube to pass between the cab and side-skirt. Appears to be prone to cracking, likely doesn't flow that well, and in my opinion looks kinda cheesy up close. But that is just my opinion, and you might find a better way, or a way to make that work for you.
     
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  7. Patronas01

    Patronas01 Light Load Member

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    If you want the stacks for looks then get the widest available and the less sharp turns the better, also to gain more power try to get a free flow muffler or if you wont get in trouble straight pipe will be even better for power gains, now if you are just going for the look only, don't bother with dyno and ECM programming, but anytime you mess with intake and exhaust it's best to dyno your truck before and after and also reprogram the ECM.
     
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  8. russtrucker

    russtrucker Road Train Member

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    I used to have weed burner on my t600. I placed universal exhaus stack behind. Looking on to replace oem with kenworth exhaust stacks, remove pto blower, place rear duel 6 in stacks, and replace the muffler with walkers megaflow.
     
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  9. true blue

    true blue Medium Load Member

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    I'm gonna look into the difference between the Donaldson and the Walker tomorrow,2/12/14, and see what I come up with. I'm glad I saw the post somewhere about the Pittsburgh Power muffler being a Donaldson Hi Flow muffler with the PP name on it.
     
  10. russtrucker

    russtrucker Road Train Member

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    Pittsburgh power is the same muffler as donaldson. Pittsburgh power sell them from $170-180.
     
  11. eeb

    eeb Heavy Load Member

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    Are you still writing "14" on your paperwork too? ;) Could leave the grass burner in place and mount fake stacks on the sides. Point 'em out to the eco cops if you run Kali."See how clean it burns! Go ahead, measure it, bet you never seen CO2levels that low!"
     
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