Question about my NPP install
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Joined: Feb 2011
Posts: 535
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From: TX
Question about my NPP install
Installed NPP on my 07 vert. by way of NPP in a box. Regardless of which mode you have it in the "exhaust doors" are open when you turn off the engine. I thought in the quiet mode they would stay closed.
Bottom line is I don't know if I have a vacuum leak off or that just the way it works. Thanks in advance for your comments.
Bottom line is I don't know if I have a vacuum leak off or that just the way it works. Thanks in advance for your comments.
Can't be any other way, it needs vacuum to stay closed and when the engine is off, no vacuum.
