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Breather Pipe Diameter


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Posted

Can anyone tell me what the diameter of the breather pipes are on my Subaru (2004 WRX) ?

I'm going to be fitting an Oil Catch Can and want to buy a breather filter but don't know what size I should get. I think it's 15mm but I'm not really sure.

Thanks, James.

Posted

Cam breathers are 1/2" (12.7mm [:D]) on the Classic at least. IIRC the block breather is slightly larger.

Not wishing to teach anyone to suck eggs but remember hose size is measured by internal diameter.

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