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Exhaust diameter

Featured Replies

I've been finding conflicting info, what's the size of the header pipe right before it goes to the doughnut gasket flange?

 

Here's a picture with an arrow pointing to the location I want the size of...

 

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Gen 3 if its the car in the profile pic. and if so gen 2 and 3 are pretty much the same or close enough.

I am pretty sure the inside diameter is it is the same as a EA81 is 1 7/8". I had a 2" exhaust fabbed up from the Y-pipe back and it was ever so slightly larger.

  • Author

Oops sorry, ea82 header, 1989. I think it's either 1-3/4 or 1-7/8...

  • Author

I basically have to make this work tonight with minimal screwing around. So I'm just gonna weld stuff to stuff and make it fixed. Just trying to figure out what size exhaust pipe to buy... since nobody knows i'll buy two different sizes and return one or something...

Not trying to sound like a wiseass but, tape measures or vernier calipers come in handy for this type of dilemma.

  • Author

The issue was the headgaskets in my outback are going, so I was parking the outback, fixing the exhaust on the GL, and driving that back to school. I wasn't gonna get to the GL until after everything was closed... I bought a bunch of different bits and pieces and still ended up welding stuff together. The GL prevails, it's been more reliable than any EJ car I've ever had.

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