03-22-2015, 09:11 PM | #1 |
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Drives: 2014 RS/LS3 Join Date: Jul 2014
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NPP Exhaust
For those of you with the quad NPP exhaust do you guys tend to have the outside pipes get real black while the inside ones stay clean? Mine do this all the time.
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03-22-2015, 09:17 PM | #2 |
Sounds like you need to romp on it a little more to get that other pipe dirty or do the fuse pull or mild to wild switch.
Just a guess, I don't have the NPP exhaust so I honestly don't know which pipe has the flaps that open. But I assume if it doesn't open that often then you would have a cleaner pipe. Just my 2 cents. Floor it! Haha
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03-22-2015, 09:17 PM | #3 |
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Thats normal. Be sure to do a flashlight check and see if muffler packing material is getting blown out. Free new mufflers!
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03-22-2015, 09:18 PM | #4 |
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I did a fuse pull that's the thing, I thought they should be dirty equally.
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03-22-2015, 09:29 PM | #5 |
I'm sure someone will chime in with more knowledge about it than I have. I thought the same thing.
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03-22-2015, 09:48 PM | #6 |
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03-22-2015, 10:00 PM | #7 |
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It is normal, and only appears on the side that is open. They are not all open when the fuse is pulled, they just switch which side is open.
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03-22-2015, 10:08 PM | #8 |
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03-22-2015, 11:48 PM | #9 |
Drives: 2014 Black Camaro 2SS 1LE Join Date: Dec 2014
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I do notice outside one gets a little dirtier but nothing I would consider abnormal.
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03-22-2015, 11:51 PM | #10 |
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03-23-2015, 06:28 PM | #11 |
Drives: 2014 Camaro Red Hot 1LE NPP Recaro Join Date: Jun 2014
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I just wipe it out after each time I tuck it in for a good night sleep.
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03-23-2015, 06:38 PM | #12 |
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It's normal. The exhaust is going to take the path of least resistance. The routing on the inside wraps through the muffler where the outsides are pretty much straight through.
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