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Old 01-03-2013, 07:31 PM   #1
FINALLYSATISFIED
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DIY/How-to: How/What fuse to pull for NPP (Dual mode exhaust)

Ok there seems to be some slight confusion as to what fuse to pull for the NPP exhaust modification. My intention is to clear up any confusion. I didn't take alot of pictures but I will take some more tomorrow and update certain areas to make this as painful as possible for those that will be attempting to do this. Install literally took 15mins and thats including fastening the cargo net plastic pieces. The vehicle used was a 2013 2SS/RS 1LE. For those wondering about pulling an engine code, you should not worry. I have not pulled a code thus far and haven't heard of anyone doing so. You only have to pull the fuse, do not pull the relay. This is only for the 2013 Camaro equipped with the NPP (Dual-mode exhaust) and or the 2012+ Chevrolet Camaro ZL1 which are equipped with NPP.

Install/Uninstall Estimate:
10-15mins or less

Tools
Flashlight (if neccessary)
Fuse puller (if neccessary)
Trim tool (if neccessary)

Location:
Fuse box is located in the trunk on the right side (passenger) behind the carpet panel. The fuse box is located behind the red square.
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If needed there is a fuse puller located in the fuse box which is located underneath the hood. The fuse box is outlined in red.
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1. Unfasten (1) flat black plastic revit
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2. Unfasten (6) black plastic cargo net screws
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3. Simply pull back the carpet to access the fuse box located in the trunk on the passenger side. Use a flash light if too dark.
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4. Open the fuse box and locate F8. It should read "EXH FLAP" 10a. Pull the fuse with the fuse puller(located underneath the hood on the left side) if needed.
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5. Now simply repeat steps 1-4 in reverse order to put everything back together. If you want to go back to stock, simply put the F8 fuse back in.

6. With the F8 fuse being pulled now the exhaust flaps will stay open, at any RPM and/or gear. You'll now witness the sound of god at any given time.

I hope this clears up some confusion on what to do and which fuse to pull. Any questions please feel free to ask, I can try and help the best way I can. Keep in mind also your stock 2013 Camaro with NPP, the exhaust flaps will stay open at idle/start up. This mod is only makes the flaps stay open all the time.

Last edited by FINALLYSATISFIED; 03-09-2013 at 10:20 AM.
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Old 01-03-2013, 07:42 PM   #2
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Any vids of the exhaust note!!
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Old 01-03-2013, 07:45 PM   #3
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Any vids of the exhaust note!!
I do not have any unfortunately. I just did this mod after work, then went to the gym. I will record a clip tomorrow!
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Old 01-03-2013, 09:24 PM   #4
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Will you notice a sound difference at start up without the fuse? I thought the valves/flaps were already open during startup with the fuse in.
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Old 01-03-2013, 09:32 PM   #5
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Will you notice a sound difference at start up without the fuse? I thought the valves/flaps were already open during startup with the fuse in.
To be honest I did not notice it at start up. I do notice it everytime my foot hits the pedal. Accelerating and deaceleration is when I also hear it. You'll have no regrets if you decide to do it. And if you want the values to have normal operation all you have to do is put the fuse back in.
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Old 01-04-2013, 05:55 PM   #6
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Added some addtional pictures to clear up some confusion! Hope this helps out anyone in question.
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Old 01-05-2013, 11:59 AM   #7
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I'm trying this today!
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Old 01-05-2013, 12:58 PM   #8
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The 2010 2SS/RS/M6 does not have that fuse. Opened up the compartment and F8 is blank and reads spare. Might just be for the 2013.
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Old 01-05-2013, 01:11 PM   #9
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You might want to edit #5. Pulling the fuse does not change the tone after you start your car.

The flap is always open at startup at idle so the fuse pull makes no difference.
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Old 01-05-2013, 01:43 PM   #10
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Quote:
Originally Posted by Iroc2430 View Post
The 2010 2SS/RS/M6 does not have that fuse. Opened up the compartment and F8 is blank and reads spare. Might just be for the 2013.
Yes only for the 2013 with NPP exhaust.
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Old 01-05-2013, 02:17 PM   #11
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Quote:
Originally Posted by mlee View Post
You might want to edit #5. Pulling the fuse does not change the tone after you start your car.

The flap is always open at startup at idle so the fuse pull makes no difference.
Fixed.

Quote:
Originally Posted by NEVRL8 View Post
Yes only for the 2013 with NPP exhaust.
Yes.
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Old 01-05-2013, 03:59 PM   #12
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Just did this mod after I read youe thread.
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Old 01-05-2013, 04:19 PM   #13
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Acceleration seem to be a lot better. I would like someome else to chime in. The butt dyno feels good!
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Old 01-05-2013, 04:23 PM   #14
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Just did this mod after I read youe thread.
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