1st off youre in f/s.
2nd, the "purge valve" is the wastegate.
and that needs to see boost. your best bet with that is to drill a hole as close as possible to the turbl outlet, buy a brass barb fitting and tap the hole you drilled for the thread on the other end of the barb fitting. make sure the outside diameter is the same as the line coming from your wastegate.
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Nissan North America - Canton
