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Old 04-15-2021, 11:37 AM   #15
NA18CamaroSS
 
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Quote:
Originally Posted by SilverSurfer18 View Post
I was being completely serious about this by the way lol I have longtubes to stock NPP and i think it sounds horrible. way too raspy sounding. I miss the sound of my 5th gen when i put longtubes on it.
I will keep you in mind.
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Old 04-15-2021, 04:31 PM   #16
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I have the exact same setup on my 18’ SS 1LE. I’ve been running it for about 2 weeks now and I love it. I was originally considering putting the NPP mufflers back on before installing the headers but now I’m glad it didn’t! Have you dyno’d the car since the install?
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Old 04-15-2021, 07:20 PM   #17
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Video

MBRP :

Stock NPP:


The MBRP is louder by a factor of 2, but you can't tell from the videos.
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Last edited by NA18CamaroSS; 04-17-2021 at 12:54 PM. Reason: Video
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Old 04-15-2021, 09:16 PM   #18
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Quote:
Originally Posted by NA18CamaroSS View Post
MBRP :

Stock NPP:


The MBRP is louder by a factor of 2, but you can't tell from the videos.
I can tell, I've heard open headers that were more docile than this set up. Your car sounds full race car. My muffler delete by comparison is practically mute, lol.
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Old 04-16-2021, 01:48 PM   #19
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Quote:
Originally Posted by Cisco View Post
I have the exact same setup on my 18’ SS 1LE. I’ve been running it for about 2 weeks now and I love it. I was originally considering putting the NPP mufflers back on before installing the headers but now I’m glad it didn’t! Have you dyno’d the car since the install?
Took it to the dyno today. Gained about 5 HP and 5 ft-lbs. of torque over the stock muffler. Not worth the hassle of worrying every time a law enforcement officer pulls up behind me. The stock muffler will be going back on this afternoon.
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Old 04-16-2021, 02:23 PM   #20
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Originally Posted by NA18CamaroSS View Post
Took it to the dyno today. Gained about 5 HP and 5 ft-lbs. of torque over the stock muffler. Not worth the hassle of worrying every time a law enforcement officer pulls up behind me. The stock muffler will be going back on this afternoon.
Yea for sure you weren't leaving much on the table. It should still be plenty loud with the factory muffler when you get on it.
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Old 04-16-2021, 04:18 PM   #21
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I currently have MBRP and love the sound paired with my Whipple SC. I have 2" ARH headers with 3" catback on the way. I was already planning to go back to the stock NPP. After seeing this I am for sure. I may try a Stainless Works NPP or Borla NPP later if I don't like the sound of the exhaust setup with the Stock NPP. I just know I'm gonna have to have NPP with the headers, 103mm TB, CAI, and Whipple. Moving lots of air!
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Old 04-16-2021, 06:20 PM   #22
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Experiment Terminated

So this little escapade has taught me a couple of things. #1- I am getting older. Driving a car that is loud enough to wake the dead is no longer my cup of tea-if it ever was.#2-The stock muffler is pretty good. 5 HP and 5 ft-lbs. of torque is nice, but not at the expense of my neighbor's good will and the unwanted attention of the local five-oh. Here is the graph in SAE:
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Old 04-16-2021, 06:24 PM   #23
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STD

The stock muffler is now securely back on the Camaro and it sounds tame in comparison to the way it sounded when I woke up this morning. Just for sh!ts and giggles, here are the STD numbers:
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Old 04-16-2021, 08:31 PM   #24
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Originally Posted by NA18CamaroSS View Post
The stock muffler is now securely back on the Camaro and it sounds tame in comparison to the way it sounded when I woke up this morning. Just for sh!ts and giggles, here are the STD numbers:
Car looks really healthy man, should be a blast. Glad to hear you got the sound where it had to be. Can't wait to try the same when my warranty is up, except non npp muffler.
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Old 04-20-2021, 01:19 PM   #25
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Those are awesome dyno numbers! Mine made 438hp and 452tq with ARH, Rotofab and a tune. I’m hoping to get close to those numbers with full bolt ons...fingers crossed.
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Old 04-22-2021, 02:11 PM   #26
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lol why are people always shocked on how loud a car is when you remove all cats? Get some Kooks green cats or high flow cats, the stock suit case is just ugly looking.
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Old 04-24-2021, 04:57 PM   #27
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Still interested?

Quote:
Originally Posted by SilverSurfer18 View Post
Sell it to me then LOL
https://www.camaro6.com/forums/showthread.php?t=591570
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