Quote:
Originally Posted by twoballscrewball
I have the NPP. Cold start is still loud in stealth, valves definitely open for probably about 10 seconds. You can hear when they close. There is no way I know of to have them all closed on startup, but at least in stealth they close after a very short while.
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mine definitely keeps mine closed on startup when in stealth mode. It's noticeable. are you a8 or mt? I don't think that makes a difference, but perhaps in this case it does.