1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

1G Evo 3 o2 housing/downpipe stud thread & pitch size?

Posted by Red_EcliPzE_GsX, Nov 20, 2019

Please Support ExtremePSI
Please Support ExtremePSI
  1. Red_EcliPzE_GsX

    Red_EcliPzE_GsX Proven Member

    45
    12
    Joined Nov 25, 2002
    Irving, Texas
    Hey everyone,

    Finally scooped me up a decent condition Evo 3 o2 housing for my 1g, but as you can see in the pics one of the studs at the bottom where the downpipe bolts up to seems a bit damaged.

    I want to attempt to repair it by going to pick up a tap and die set, but can anyone confirm the thread and pitch size of those studs?

    Some of the google searching I was doing lead me to a M12 x 1.00? But looking to get this confirmed, thanks!
     

    Attached Files:

    • evo3.jpg
      evo3.jpg
      File size:
      375.2 KB
      Views:
      17

    378  3

    1990 Mitsubishi Eclipse GSX
    manual · 1G DSM
    Loading...
  2. ec17pse

    ec17pse Freelancer

    3,484
    1,369
    Joined Nov 1, 2008
    London, Europe
    Bottom studs are metric fine M12x1.25
     

    Road Race Build 9K  10  51

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
    Loading...
    steve and Red_EcliPzE_GsX like this.
  3. Bud92gsx

    Bud92gsx Proven Member

    7,995
    113
    Joined Jan 16, 2008
    Wisconsin, Wisconsin
    I have to remind you that the E3 housing is at a different angle than most of our bolt on downpipes. It can be done, but I'm just letting you know.
     

    4K  18  14

    1992 Mitsubishi Eclipse GSX
    13.300 @ 102.400 · 1G DSM
    Loading...
    steve, Canadian_CD9A and ec17pse like this.
  4. Red_EcliPzE_GsX

    Red_EcliPzE_GsX Proven Member

    45
    12
    Joined Nov 25, 2002
    Irving, Texas
    Yes I am well aware. Currently running the Megan racing downpipe so I know the flange of the downpipe will slip onto the studs no problem. And I am prepared to have the downpipe altered at a local exhaust shop to get it to mount properly without hitting the t-case.
     

    378  3

    1990 Mitsubishi Eclipse GSX
    manual · 1G DSM
    Loading...
    Bud92gsx likes this.

Share This Page

Support Vendors who Support the DSM Community
Archer Fabrication ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing RixRacing RockAuto SouthBay Fuel Injectors STM Tuned Track Decals Track Sculptures VR Speed Factory WheelWell.com