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exhaust diameter?


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Posted

Does anyone know the exhaust diameter for a 92 3.1 Lumina? Mine is at the shop right now, engine swap. I want to put on an exhaust cutout, so i need to know the diameter, and I haven't had a chance to measure it lately. Thanks.

Posted

On my regal It's 2.5" going into the cat an 2.25" after the cat. I have a 3800 so it might be different, but it should be close if it is.

Posted

After the cat on a 2.8L / 3.1L pushrod motor, it is 2.0"

PhantomFE3, Robby, anyone... wanna spot check me on that?

 

- Erik

Posted
After the cat on a 2.8L / 3.1L pushrod motor, it is 2.0"

PhantomFE3, Robby, anyone... wanna spot check me on that?

 

- Erik

 

I agree, 2.0 after cat on 2.8/3.1L

Posted

its the same before the cat, im pretty sure. what do you have planned? dual exhaust?

Posted
:) thanks. Now if i can only find a 2" cutout... All i can find are the flue/flew (sp) type, i want a simple remove-the-wing-nuts kind. I think the flue type would probably wear out quickly, just like the chimney kinds do. Any experience with them?

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