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Old 11-07-2022, 01:05 PM   #1
RideWithDanger
 
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Custom NPP setup?

Has anyone created their own custom NPP exhaust using the factory NPP actuators?

I really like the MBRP sound for the SS but I live in a neighborhood and don't want to lose stealth mode. How difficult would it be to get the single tip MBRP (Or custom straight pipe and J pipes) and install the actuators to it, and then further back create the second path, having it run through something like a Flowmaster Super 44 series muffler on each side?

Im just trying to get ideas together. The only 2 options for keeping NPP are Borla and Corsa, and honestly I like the MBRP sound better on top of it being a fraction of the cost.
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Old 11-07-2022, 01:37 PM   #2
WhiteMale

 
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I run the MBRP axle back and it's basically just a muffler delete with the resonator there for drone, it's honestly not as loud as I expected a muffler delete to be but the cold start is pretty damn crisp for about 30 seconds. But otherwise it's not all that obnoxious for what it is.
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Old 11-07-2022, 01:43 PM   #3
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Quote:
Originally Posted by WhiteMale View Post
I run the MBRP axle back and it's basically just a muffler delete with the resonator there for drone, it's honestly not as loud as I expected a muffler delete to be but the cold start is pretty damn crisp for about 30 seconds. But otherwise it's not all that obnoxious for what it is.
This is why I mentioned just doing a custom straight pipe with J pipes, I know its a glorified muffler delete. Their J pipes work really well as the tone is better than any muffler delete I've seen along with no drone. Currently my V6 has aftermarket exhaust and even its a bit loud for leaving early morning. I want to be a good neighbor lol.

The cold starts early in the morning are exactly what im worried about. Obviously it could be worse, but im still trying to have my neighbors not hate me, but I want my car to sound good.
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Radiant Red 23' 2SS 1LE
1100: 11/14/22 | BUILT: 3/16/23
2000: 2/17/23 | 4200: 5/8/23
3000: 2/27/23 | 5000/6000: 5/15/23

Black on black 2019 3LT RS Camaro.
1100: 3/7/19 | 4200: 4/15/19
3100: 3/15/19 | 4800: 4/23/19
3400: 3/22/19 | 5000: 4/25/19
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Old 11-07-2022, 01:47 PM   #4
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Aren't the NPP flaps open on startup regardless of your settings?
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Old 11-07-2022, 01:56 PM   #5
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Quote:
Originally Posted by Carrot Farmer 429 View Post
Aren't the NPP flaps open on startup regardless of your settings?
You can turn on stealth mode in one of the menus in the car. I also believe Snow/Ice mode keeps them closed. I was planning on tuning the car and messing with these settings anyway so I can pick which modes have them open and when.
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Radiant Red 23' 2SS 1LE
1100: 11/14/22 | BUILT: 3/16/23
2000: 2/17/23 | 4200: 5/8/23
3000: 2/27/23 | 5000/6000: 5/15/23

Black on black 2019 3LT RS Camaro.
1100: 3/7/19 | 4200: 4/15/19
3100: 3/15/19 | 4800: 4/23/19
3400: 3/22/19 | 5000: 4/25/19
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Old 11-07-2022, 04:10 PM   #6
SOCAL.M6.ZLE
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i thought about doing these as well... heard back reviews on the QTP's not sealing well and leaking, so using the stock valves might be better...
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Old 11-07-2022, 04:25 PM   #7
Trochoidal

 
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Quote:
Originally Posted by RideWithDanger View Post
Has anyone created their own custom NPP exhaust using the factory NPP actuators?

I really like the MBRP sound for the SS but I live in a neighborhood and don't want to lose stealth mode. How difficult would it be to get the single tip MBRP (Or custom straight pipe and J pipes) and install the actuators to it, and then further back create the second path, having it run through something like a Flowmaster Super 44 series muffler on each side?

Im just trying to get ideas together. The only 2 options for keeping NPP are Borla and Corsa, and honestly I like the MBRP sound better on top of it being a fraction of the cost.
FasNuf did this on his 5th gen. Maybe watch this video he made and see if it’s what you want.

https://m.youtube.com/watch?v=R1WfpAotXIY

Reach him here:
https://www.camaro6.com/forums/member.php?u=149319
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