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I have an OBX header. It came on the car when I bought it. Does anyone know what the thread pitch on the smog hookup. I have tried Google, no help. Any help would be great. Thank you.
 

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I have an OBX header. It came on the car when I bought it. Does anyone know what the thread pitch on the smog hookup. I have tried Google, no help. Any help would be great. Thank you.

The EGR port is M24 x 1.5. Supposedly the oil pan plug for a 2004 vw touareg v8 is M24 x 1.5, though I haven't verified that.


The air suction is either M30 or M32 but I don't know the thread pitch. If I had to guess I would say it's M32 x 1.5. I think the oil filler plug from a manual transmission might actually fit in that port. Dorman still lists these parts:

http://www.dormanproducts.com/p-1773-090-102.aspx?origin=keyword

If you have a manual trans it's worth pulling out the fill plug to see if it would fit in the header port.


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