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      03-17-2017, 05:24 PM   #1
inevitab1e
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How to make the PE quieter after DP install?

Just got a VRSF downpipe put into the N55 and the car is twice as loud as before the DP. Burbles are intensified/extended, some loud pops, overall sound is much louder.

I've tried setting the CAN flap settings on the steering wheel but don't notice a difference with the 3 options (open/closed/factory default). Exhaust sounds like the CAN flap is always open.

Is there a setting I'm missing after the DP install? Any way to reduce the burbles and overall loudness of the exhaust? I had no idea adding the DP to the PE would be this ridiculous. And I'm not even talking about WOT.

EDIT: my DWGP is set to 60 (default)

Last edited by inevitab1e; 03-17-2017 at 06:14 PM.
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      03-17-2017, 07:08 PM   #2
STR8-6IX
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Quote:
Originally Posted by inevitab1e View Post
Just got a VRSF downpipe put into the N55 and the car is twice as loud as before the DP. Burbles are intensified/extended, some loud pops, overall sound is much louder.

I've tried setting the CAN flap settings on the steering wheel but don't notice a difference with the 3 options (open/closed/factory default). Exhaust sounds like the CAN flap is always open.

Is there a setting I'm missing after the DP install? Any way to reduce the burbles and overall loudness of the exhaust? I had no idea adding the DP to the PE would be this ridiculous. And I'm not even talking about WOT.

EDIT: my DWGP is set to 60 (default)
put a resonator on underneath your rear seats and/or put the OEM muffler back on. I would probably just sell the PE to be honest.
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      03-17-2017, 07:15 PM   #3
Vigilante375
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Well you just made your exhaust more "open" so it is going to be louder than before. Replace the PE with a stock, non PE exhaust.

Exhaust just adds sound anyways. No "real" performance gain from it.
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      03-17-2017, 07:23 PM   #4
inevitab1e
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I figured out a problem with settings. There was no way this loudness was normal. I had my menu 12 set to 0. Changed it to 2800. That seemed to quiet things down. Phew, was worried there.

I think I've done WOT runs with menu 12 set to '0' unintentionally, would that affect the IGN or other #'s in a log negatively?

This is what menu 10,11,12 are set to w/ my N55. I don't hear any rattling

Menu 10 = 3000
Menu 11 = 0.5
Menu 12 = 2800

I do notice a weird oscillating and reverberation "drone sound" coming from the exhaust around 2k rpm. Not sure what that's related to. Anyways, just took a drive with the new settings.

http://www.datazap.me/u/inevitab1e/l...0&data=1-3-4-5

This was earlier today, just pulling in a garage.


Last edited by inevitab1e; 03-17-2017 at 07:42 PM.
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      03-20-2017, 03:02 PM   #5
Blown95ImpalaSS
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put these in the midpipe, problem solved:

https://www.amazon.com/Vibrant-1792-.../dp/B000E3VHVO

post a vid after, it's gonna sound great
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      03-20-2017, 06:17 PM   #6
Dthltm
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PM me if you want to sell your PE. I'm looking
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