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Old Mar 4, 2013 | 12:49 PM
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Default NPP question

I'm sure this has been asked but the search came up with too many topics to sift through.

Can NPP be added to an 06 and work exactly like stock (no remotes, buttons,etc)?

I just want to be able to mash the pedal and it works.
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Old Mar 4, 2013 | 01:37 PM
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If you get the right controller, sure.

I have a 2006, and the "NPP in a box" controller. I open and close mine with my Homelink visor garage door opener controller.

I have LG 1-7/8" SuperPro Headers, high-flow cats, and NPP mufflers.

Here is a video, with them open and then closed.

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Old Mar 4, 2013 | 02:21 PM
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Originally Posted by revo1059
I'm sure this has been asked but the search came up with too many topics to sift through.

Can NPP be added to an 06 and work exactly like stock (no remotes, buttons,etc)?

I just want to be able to mash the pedal and it works.
Make sure you get the correct year exhaust when you buy. When I bought for my 2012 Grand Sport I believe I was told to buy 2009 or newer because there was a slight change in the over axle section. You shouldn't need a remote, but I would recommend you get one, especially if you have headers and cam. Here is mine:


and at the track she sounds awfully nice chasing down porsches:


Last edited by MarkDFW; Mar 4, 2013 at 02:25 PM.
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Old Mar 4, 2013 | 02:25 PM
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"if you get the right controller, sure."

The factory NPP system will automatically open the valves at about 3,500 rpm, and automatically close them as the RPM drops off. If desired, you can also install a separate override switch to open them at any time.

I was under the impression that most retrofits had only the manual operation, not the automatic.

Exhaust experts will set one of us straight pretty soon...
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Old Mar 4, 2013 | 02:26 PM
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I believe you can also pull a fuse if you want them open all the time, and don't care about a remote or the noise.
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Old Mar 4, 2013 | 02:42 PM
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Originally Posted by revo1059
I'm sure this has been asked but the search came up with too many topics to sift through.

Can NPP be added to an 06 and work exactly like stock (no remotes, buttons,etc)?

I just want to be able to mash the pedal and it works.
No and 06 requires some form of manual switch.
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Old Mar 4, 2013 | 03:00 PM
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No and 06 requires some form of manual switch.
That sucks. Is it controlled by the ECM?
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Old Mar 4, 2013 | 03:17 PM
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You can do it, but it gets reeeeeally expensive.
Go talk to your local Chevy dealer about price, then come back here and ask about alternative methods to do nearly the same thing.
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Old Mar 4, 2013 | 03:38 PM
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In order to add NPP to a car that didn't come with it from the factory you will need to first get the NPP mufflers, then use a NPP retrofit kit to be able to control them.

The Exhaust Commander Elite NPP retrofit kit can operate like a factory NPP car, and open with a set RPM. Or you can choose to have full open and full closed modes also.

Check out the video!

Here is our Exhaust Commander Elite NPP retrofit kit.
It includes all the vacuum lines, wiring, vacuum solenoid, and controller that will make the NPP exhaust operate.

Exhaust Commander Elite All-in-1 NPP retrofit kit


We help many people add NPP to C6's that didn't come with it from the factory.

If you need any additional info let us know.

Ben

Last edited by SunsetOrangeCreations; Mar 4, 2013 at 03:43 PM.
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Old Mar 4, 2013 | 03:40 PM
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Originally Posted by Gearhead Jim
"if you get the right controller, sure."

The factory NPP system will automatically open the valves at about 3,500 rpm, and automatically close them as the RPM drops off. If desired, you can also install a separate override switch to open them at any time.

I was under the impression that most retrofits had only the manual operation, not the automatic.

Exhaust experts will set one of us straight pretty soon...
Check out our Exhaust Commander Elite retrofit kit video.

It has a user selectable rpm opening mode!

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Old Mar 4, 2013 | 03:43 PM
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Originally Posted by revo1059
I'm sure this has been asked but the search came up with too many topics to sift through.

Can NPP be added to an 06 and work exactly like stock (no remotes, buttons,etc)?

I just want to be able to mash the pedal and it works.
You can do exactly what you want if you use the Exhaust Commander Elite NPP retrofit kit.

You select the RPM that you want it to open the butterflies automatically at.

Then when your engine reaches that RPM the butterflies will open automatically, just like the factory cars do.

Well, actually better than the factory cars, because you select the rpm they open at and have total control over the operation of the system.

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Old Mar 4, 2013 | 07:02 PM
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Originally Posted by revo1059
I'm sure this has been asked but the search came up with too many topics to sift through.

Can NPP be added to an 06 and work exactly like stock (no remotes, buttons,etc)?

I just want to be able to mash the pedal and it works.
No. even if you bought every part from a later 'Vette w/NPP you would not get factory function since the ECM is involved.

Sunset Orange Creations kits come the closest to working like OEM.
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Old Mar 4, 2013 | 08:37 PM
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Originally Posted by revo1059
I just want to be able to mash the pedal and it works.
If you just run a vac line directly from the engine to the mufflers, they will open up when you mash the pedal--the engine vac drops when you punch it.
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Old Mar 4, 2013 | 08:45 PM
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Originally Posted by Sayfoo
If you just run a vac line directly from the engine to the mufflers, they will open up when you mash the pedal--the engine vac drops when you punch it.
Nope
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Old Mar 4, 2013 | 08:49 PM
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Originally Posted by haljensen
No. even if you bought every part from a later 'Vette w/NPP you would not get factory function since the ECM is involved.

Sunset Orange Creations kits come the closest to working like OEM.
Looks like Sunset kit could make it work exactly like it does from the factory, plus you can set the rpm at which it opens to something other than the factory setting of 3500 rpm if you want. So Sunset is actually better/more flexible than the factory option.
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Old Mar 5, 2013 | 11:37 AM
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Nice, I like it. That kit should do the trick. Anybody have the NPP muffler part #s (that will fit a 2006 A6)?
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Old Mar 5, 2013 | 02:03 PM
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Originally Posted by revo1059
Nice, I like it. That kit should do the trick. Anybody have the NPP muffler part #s (that will fit a 2006 A6)?
GM Part numbers for NPP mufflers that bolt into 2005-2008:

15879289
+
15879288

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Old Mar 5, 2013 | 02:28 PM
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Originally Posted by C6RaceCar
Nope
Nope? It does on my setup. If I dump the throttle, my vacuum goes to zero or +boost and the NPP goes wide open.

Elmer
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Old Mar 5, 2013 | 05:44 PM
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Originally Posted by eboggs_jkvl
Nope? It does on my setup. If I dump the throttle, my vacuum goes to zero or +boost and the NPP goes wide open.

Elmer
That's not going to get you what the factory does.
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Old Mar 5, 2013 | 06:01 PM
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Originally Posted by C6RaceCar
That's not going to get you what the factory does.
But the system offered by Sunset Orange Creations as described above will and also gives the extra feature of selecting the rpm's that the valves open and close. You don't have that choice with the OEM system.
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