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For those who have had the unfortunate luck of breaking their rear vacuum line plastic attachment on the intake manifold, right below the PCV valve, or broke their epoxy repair when putting on a catch can adapter, you can tap it with a 1/8 pipe ntp and put in a brass 1/8 barb.(no drilling necessary)
I would recommend doing this off of the car as if you tap deep enough you will push out the existing plastic inside the manifold that you need to pick out with a small tool. Although I would imagine you wouldn’t need to tap for a full embedment like I did since it’s just holding vacuum.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
