Thread: Functioning NPP for $50
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Old 08-30-2013, 07:09 PM   #10
Jims73z
 
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Drives: 1973 z28 Rs , 2012 SS/Rs Blk/Blk M6
Join Date: Oct 2009
Location: Laguna
Posts: 197
It looks like the corvette guys make their quiet mode louder using collars on the vacuum solenoid to hold them slightly open. Hopefully I'll get my npp installed soon.
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