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Old Jul 2, 2008 | 10:22 AM
  #1  
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I love my NPP exhaust but what does NPP stand for?
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Old Jul 2, 2008 | 10:24 AM
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It does not stand for anything. It's just an RPO code like Z51 or LS2, etc.
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Old Jul 2, 2008 | 10:24 AM
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Originally Posted by IndyPacer
I love my NPP exhaust but what does NPP stand for?
Nothing really. Its just the RPO code for the dual mode mufflers.
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Old Jul 2, 2008 | 10:44 AM
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Your both wrong

GM secret code for - No Prosthetic *****
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Old Jul 2, 2008 | 10:45 AM
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Originally Posted by Ucraz-E
Your both wrong

GM secret code for - No Prosthetic *****
10-4 on the RPO code
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Old Jul 2, 2008 | 12:10 PM
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Or as the vette haters would say

Need Prosthetic *****
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Old Jul 2, 2008 | 12:50 PM
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Predecessor to that 90's tune OPP.
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Old Jul 2, 2008 | 02:10 PM
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Nippon Poser Pounder
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Old Jul 2, 2008 | 02:16 PM
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Originally Posted by sabooher
Predecessor to that 90's tune OPP.
"...yeah, you know me."
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