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Old 09-18-2015, 03:54 PM   #15
molsonbrador

 
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Quote:
Originally Posted by vinman View Post
I thought that stuff was for the front of the car...
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Old 09-18-2015, 05:39 PM   #16
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Originally Posted by KaBoom1701 View Post
It's the NPP closing off the two inner exhaust tips.
It's this. The NPP closing the flaps. "Open" where its louder is the outter tips where the exhaust gasses come out. "Closed" is where its quiet is the inner two tips. Pull the fuse and the flaps will always be open and the outside tips will only get dirty.
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Old 09-18-2015, 07:04 PM   #17
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Originally Posted by CamaroDreams76 View Post
It's this. The NPP closing the flaps. "Open" where its louder is the outter tips where the exhaust gasses come out. "Closed" is where its quiet is the inner two tips. Pull the fuse and the flaps will always be open and the outside tips will only get dirty.
I have learned something. That makes sense. I had assumed pulling the fuse opened up both tips. But I have exactly the same thing happening and have had my fuse out for a long time. I bought the Mild to Wild Control unit but never wanted to go back to Mild. Ha. So I sold it and pulled the fuse.
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Old 09-20-2015, 05:43 PM   #18
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Funny, my 2014 inners get dirtier. I also use Windex. Come right off.

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Old 09-21-2015, 08:14 PM   #19
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Ok so I pulled the fuse and the sound is awesome. I love hearing the crackle even at low rpms. Is pulling this fuse for the car bad for it in any way shape or form??
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Old 09-21-2015, 09:56 PM   #20
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Originally Posted by Rawcka View Post
Ok so I pulled the fuse and the sound is awesome. I love hearing the crackle even at low rpms. Is pulling this fuse for the car bad for it in any way shape or form??
Negative... The fuse and exhaust valves are simply designed for sound dissipation. You are g2g!!! Enjoy
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Old 09-21-2015, 09:59 PM   #21
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Originally Posted by Highland Ranger View Post
Funny, my 2014 inners get dirtier. I also use Windex. Come right off.

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Me too, i guess we know who is keeping their foot down an who's not. Wheel cleaner on the tips after hitting the wheels.
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Old 09-22-2015, 06:43 AM   #22
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Lots of voodoo in this thread. Dual mode exhaust 101.
In normal operation the exhaust flow module closes the valve, diverting exhaust through the baffled path inside the muffler. At cold start or RPM>3500, the valve opens, diverting exhaust through the un-baffled path inside the muffler. Actually, exhaust flows through both paths but most of it takes the unbaffled path of least resistance. The fuse pull leaves the valve in the open position. This is why the outer tips will be black while the inner tips get only slightly dirty when the fuse is pulled. Found this diagram on a corvette forum that describes the operation.
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Old 09-22-2015, 08:13 AM   #23
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the dirt on mine are equally dispersed.
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