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Those will single exhaust post up

Discussion in 'The Garage' started by sandawgk5, Jan 19, 2007.

  1. sandawgk5

    sandawgk5 3/4 ton status

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    I am looking at how those with single exhaust have it run. I need to run a cat also I will be running 3" from the y-pipe out the back and I am looking for a side exit behind the rear tire. I run a flip so the stock exit wont work.

    It looks like I have room to fit the tail pipe between the frame and the rear leaf and run it up by the floor underneath the wheel well. The object is to get it as high as possible and out of the rocks but clear of all the moving suspension parts and stuff.

    Any input and pics would be great.

    Ira
     
  2. bigblazer87

    bigblazer87 1/2 ton status

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    I run a custom 2.5" Y-pipe into a 3" high-flow cat into a Flowmaster Super 40 (3" inlet, dual 2.5" outlet) dumping just over the axle. Here are the pictures of it:
    [​IMG]
    [​IMG]
     
  3. sandawgk5

    sandawgk5 3/4 ton status

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    Do they say anything at the smog station aboot dumping it under the truck? I would prefer to get it out from under the rig as down here most of where we run is dry and dusty.

    Ira
     
  4. bigblazer87

    bigblazer87 1/2 ton status

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    I'm stuck in Smog-Nazi Cali as well, and when I took it to get smogged, they didn't really bother me about it. I dumped it because I plan to do a shackle flip on the rear to get rid of the shackle, and there's not enough room there to run pipes out.
     
  5. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Stock location works for me with a shackle flip , pipe above spring saves the exhaust on the rocks :thumb:

    I also have a exhaust shop made y-pipe , single to a bigger cat I installed , to a single muffler up close to the floor in front of the axle .

    [​IMG]
     
  6. 88Silverado

    88Silverado 1/2 ton status

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    Look at my link, the last pic will show the exhaust reroute for the Flip and Inboarded Shocks.
    Basically, after the Y, it goes into the Cat then into a Flow-50 then bends and routes on the outside of the frame rail. Very similar as this one
    http://coloradok5.com/ranchoshockreview/rearshocksonramp.jpg
     
  7. sandawgk5

    sandawgk5 3/4 ton status

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    This is what I am looking at doing but I am not inboarded yet so room might be tight
    [​IMG]


    Ira
     
  8. sandawgk5

    sandawgk5 3/4 ton status

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    Holy big pic batman:D

    Ira
     
  9. muddybuddy

    muddybuddy 3/4 ton status

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    ira, im not sure if i like that setup or not. wheres the end of it? does it just point down? it just looks funny to me, but it does get it up and out of the way.
     
  10. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    Yep, I've got a 3" pipe from the Y on my '91. It's on the stock hangers to the axle. Slight upward kink at the axle (flip + 1 1/2" zeros) then continues straight backwards with only a slight kink in it running between the shackle and gas tank, straight out the back just below the bumper.
    Sorry but I can't get a pic now and I'm going away tomorrow.
     
  11. sandawgk5

    sandawgk5 3/4 ton status

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    Mine will bend at the rear and out the side right under the rear quarter.

    Ira
     
  12. sandawgk5

    sandawgk5 3/4 ton status

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    Here is a crude paint version of what I intend to do. It will all be mandrel bent 3" aluminized.
    exhaust.jpg

    Ira

    exhaust.jpg
     
  13. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    3" Flowmaster Cat back on my '91 'Burb
    [​IMG]
    [​IMG]
    [​IMG]
     
  14. muddybuddy

    muddybuddy 3/4 ton status

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    see now i kinda like that, eventhough i didnt really like the last one:haha:

    any particluar reason you dont just want to run the stock piping? i got all the factory tubing for my '88 from the y pipe back and it was all 3". then i just cut the end part off. got all the tubing which was pre-bent and everything for under $80.
     
  15. sandawgk5

    sandawgk5 3/4 ton status

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    Ya you can see my stock tailpipe dumping by the gas tank. It is not 3" it looks aboot 2.5 and aboot the only good portion of the exhaust is the y and the tailpipe the rest looks like swiss cheese:doah:. The muffler is attached to the cat by about 1 square inch of metal and non of it is mandrel bent it is all that kink bent ****:o. I am putting a new cat and a Flowmaster super 40 in so I figured I would change everything out to 3" mandrel bent. When I get the cash I will prolly go with a set of TES headers. I dont run inners so plug changes are not a big deal to me. I have to get the new exhaust on by mid march as I have to smog for my registration and I do not think it will pass the way it is.

    Ira
     
  16. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    Here are a couple pics of mine...If you want more detail and info, just let me know.

    100_0912 700X527.jpg

    100_0911 700X527.jpg

    100_1420.JPG
     
  17. mofugly13

    mofugly13 1 ton bucket of rust Premium Member

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    I have a single 3" that dumps right next to the gas tank armor. No way it will hang up on anything. I run a Flowmaster 50 SUV, and it is pretty loud inside the truck. I donno if it's the muffler, or where the exhaust is dumped, but the whole exhaust system is tucked way out of the way, so I'll deal with it for now.

    [​IMG]
     
  18. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    I will see about getting you a pic of my exhaust when i get home tonight. Here are a few pics of my exhaust.

    3 single Exhaust 002.jpg

    3 single Exhaust 006.jpg

    3 single Exhaust 005.jpg

    3 single Exhaust 003.jpg

    3 single Exhaust 004.jpg
     
    Last edited: Jan 19, 2007
  19. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Mine's a Big Block 70 series, Quiet inside and nice tone outside.
     
  20. bigblazer87

    bigblazer87 1/2 ton status

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    Yeah, I'm not gonna lie, the Super 40 is VERY loud. I have to drop down to an idle when driving past the fuzz, because the last thing I want happening is them pulling me over for a loud exhaust, then writing me up for no mud flaps while they're at it. That would ruin my day...
     

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