From what I've read, boost keeps it closed and relys on boost to shut it, meaning its open at idle and needs a filter. So, this would be ok for a MAP only setup but for second gens with a MAF it would be unmetered air. Their website sells an accessory which has a spring to keep the valve closed but changes the sound to a more high pitched noise, which I don't want... Anyone confirm this?
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'15 Juke Nismo
'06 MX-5 GT SOLD
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