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Factory Exhaust Pipe Question

Discussion in 'Performance and Tuning' started by speddmn, Aug 30, 2013.

  1. Aug 30, 2013 at 7:23 AM
    #1
    speddmn

    speddmn [OP] Well-Known Member

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    I searched but I think i'm probably using terms that are far too generic - can someone tell me the diameter of the factory exhaust on a V6?

    I have a 2013 DCSB 4.0 4x4

    (also, is it stainless?)
    Thanks!
     
  2. Aug 30, 2013 at 8:20 AM
    #2
    tooter

    tooter play every day

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    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    I can't say for certain... but I believe that it's the same as the 2.7 exhaust which has an outside diameter of 2 3/8 inches. I found this out when I had purchased a muffler that fits 2 1/4" pipe and the ends needed to be swedged out to 2 3/8" to slip fit over the pipes. The system is definitely not stainless and is most likely made of aluminized steel.
     
    Last edited: Aug 30, 2013
  3. Aug 30, 2013 at 8:37 AM
    #3
    speddmn

    speddmn [OP] Well-Known Member

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    Thanks for the detailed response dude!
     
  4. Aug 31, 2013 at 2:28 PM
    #4
    DonziGT230

    DonziGT230 Gearhead

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    May not matter here, but I can almost guarantee it's stainless steel. Probably a low grade like 409 which is magnetic and will rust and welds easily, but way outlasts bare or aluminized steel.
     
  5. Aug 31, 2013 at 4:42 PM
    #5
    tooter

    tooter play every day

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    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    You may be right...

    ...it just sounds funny to read that it's stainless steel...

    ...except that it's magnetic and it rusts. ;)

    Greg
     
  6. Aug 31, 2013 at 5:56 PM
    #6
    PMK

    PMK Well-Known Member

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    I spoke with m welder friend today about picking up 2 feet of tubing and hangers for my exhaust mod / install.

    He said the tubes are 409.

    PK
     
  7. Aug 31, 2013 at 9:47 PM
    #7
    tooter

    tooter play every day

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    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    Hey, I'm glad that it's not just plain steel because I want my stock exhaust system to last. It's quiet and doesn't lose low end torque. :)

    I tend to think of stainless steel as more like this...

    .[​IMG]
     
  8. Sep 2, 2013 at 7:45 AM
    #8
    DonziGT230

    DonziGT230 Gearhead

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    The pretty stuff is higher grade and polished. The cheap stuff could probably be polished, but a crapload of work. I believe all automotive exhausts have been stainless for decades. The oxygenated fuels and emission controls have accelerated corrosion on the exhaust greatly compared to the good ole days. The factory exhaust will last pretty much forever even tho is looks to be rusty.
     
  9. Sep 2, 2013 at 10:42 AM
    #9
    tooter

    tooter play every day

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    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    Thanks for the useful information. I'm really happy to hear that because it's good to have materials that last, especially in an exhaust system. :thumbsup:
     
  10. Sep 3, 2013 at 6:36 AM
    #10
    Lurkin

    Lurkin Well-Known Member

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    The older gen IIs are 2.25 pipes, but I've "heard" that the newer model years are now 2.5. Not sure on when the switch occurred, but would suspect your '13 is 2.5.
     
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