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- #4,081
What you're seeing is either the AC line or the oil line.I hate trying to adjust those. It looks like it has a rubber boost reference line from the compressor to the WG actuator? If so I would order up another boost fooler to add in the air hose. Much easier to adjust when the WG is opening on the fly. Being able to tune in the middle of a test drive will also speed up progress of getting things dialed in.