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I tried the search but didn't find the answer. I thought that there was a source on the back side of the intake. There is a plugged port next to the brake booster line. Is this where most are getting vaccum for the Z06/NPP mufflers? Car is a 2005 A4 with the Z06 mufflers. No retro kit yet. It's in the plan of mods though. I've got the intake off now so I can port it and found what looks to be a plugged vaccum port. Wanting to know if I should run a line from this port while the intake is off and it's easy to access.
Thanks
As I recall, some folks found that vacuum source hard to find. Something about the difference from one year 'vette to another,
I used Ed's NPP in a box and it was a piece of cake, works as advertised and I didn't have to run line from fore to aft. NPP-in-a-box with M2W is the ticket!