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I took a look at the mod to route the ground. With the CCv vented into the intake, the vacume in the intake assists the ventilation .
With the CCV vented the the down pipe , the outlet od exhaust would assist with the ventilation and the gasses would get partially get burned as well.
This would help keep excess oil out of the intercooler.
This would be a easy mod if you already had the downpipe off