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Npp?

Old 01-07-2012, 08:15 PM
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kmthor00
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Default Npp?

Is it safe to assume my 2012 GS 3LT has NPP exhaust? In winter storage & cant get to glove box.
Tx, Ken
Old 01-07-2012, 08:16 PM
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KenHorse
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Only if it was ordered that way.

NPP is an option regardless of interior level chosen
Old 01-07-2012, 08:17 PM
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DonOH
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NPP is on option of 3LT.

Have to ask the dealer if all of his 3LT's have NPP.
Old 01-07-2012, 08:26 PM
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Supersonic 427
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NPP is a stand alone option and has nothing to do with trim levels! You can have a 1LT with it or a 4 LT without it!
Old 01-07-2012, 08:31 PM
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ladder13
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Originally Posted by Supersonic GS
NPP is a stand alone option and has nothing to do with trim levels! You can have a 1LT with it or a 4 LT without it!


Look at the pipes, you'll see valves inside them.
Old 01-07-2012, 08:39 PM
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It will be listed on window sticker.
I would think if it had it though, you would already know(no disrespect intended)

Bert

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Old 01-07-2012, 08:41 PM
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Polar Jet
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The butterfly valve at the tailpipes will tell you for sure. If you're still unsure, start it up. If you rev it up past 3000 rpms and the exhaust suddenly sounds meaner... you have NPP.
Old 01-07-2012, 08:42 PM
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kmthor00
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Originally Posted by ladder13


Look at the pipes, you'll see valves inside them.
Pipes at the rear? Unfortunately i only put 11 miles on it before storage! Tx all
Old 01-07-2012, 08:42 PM
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CaryBob
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If you can see the actuators on top of the inside tubes, and the baffles inside them, tne you have the NPP exhaust. As others pointed out it is a standalone extra cost option.

http://image.vetteweb.com/f/9002745/...PP_exhaust.jpg
Old 01-07-2012, 08:45 PM
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kmthor00
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Yup, the valves are there! Thanks all! Ken
Old 01-07-2012, 09:34 PM
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tim414
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Originally Posted by Supersonic GS
NPP is a stand alone option and has nothing to do with trim levels! You can have a 1LT with it or a 4 LT without it!
Old 01-07-2012, 09:36 PM
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peter pan
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Originally Posted by kmthor00
Yup, the valves are there! Thanks all! Ken
Cool you have NPP
Old 01-07-2012, 10:42 PM
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Gary '09 C6
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Originally Posted by kmthor00
Yup, the valves are there! Thanks all! Ken

...now you need to install a M2W so the NPP can be controlled on-demand !
Old 01-07-2012, 11:00 PM
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Originally Posted by Gary '09 C6
...now you need to install a M2W so the NPP can be controlled on-demand !
That was my first and only mod....well worth doing!
Old 01-07-2012, 11:16 PM
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Originally Posted by kmthor00
Pipes at the rear? Unfortunately i only put 11 miles on it before storage! Tx all
As warm as it's been up there ................ Why ?
Old 01-07-2012, 11:17 PM
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Originally Posted by Gary '09 C6
...now you need to install a M2W so the NPP can be controlled on-demand !

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