Deeper Exhaust Note but Not much Louder

Knightfall50th · 09-12-2025, 02:12 PM

I like the stock exhaust but wish it had a deeper note and was less raspy.

Anybody accomplish that without making it much louder?

vince3 · 09-12-2025, 02:24 PM

My ARH mufflers do this, but without headers that would probably be too quiet. It's hard to explain the sound, it's a different frequency that is deep but not loud. Mine is not this loud because they have cats.

https://www.youtube.com/watch?app=desktop&v=dq_iQpE3GuE

p47dman · 09-12-2025, 06:37 PM

Borla axle back, mine has deep throaty sound when I pound on it. But still does not wake neighbors when I back out of garage.

ALMN · 09-12-2025, 07:01 PM

Quote:

Originally Posted by Knightfall50th

I like the stock exhaust but wish it had a deeper note and was less raspy.

Anybody accomplish that without making it much louder?

Your best option is Borla S Type axleback system!

DamonZ28 · 09-12-2025, 08:57 PM

Quote:

Originally Posted by vince3

My ARH mufflers do this, but without headers that would probably be too quiet. It's hard to explain the sound, it's a different frequency that is deep but not loud. Mine is not this loud because they have cats.

https://www.youtube.com/watch?app=desktop&v=dq_iQpE3GuE

That Nickey car has a LOT more done to it than just an exhaust.

AZIROC · 09-12-2025, 09:57 PM

id probably say borla ATAK axle back if you will never get headers. If you think you will do headers, get the s-type.

Knightfall50th · 09-13-2025, 08:59 AM

I'd like to keep all the npp intact. I wonder if swapping the secondary cats for a small resonator would do anything?

AZIROC · 09-13-2025, 10:05 AM

You would need a tune if you are going to delete your rear cats. If you are going to do that, u might as well get headers and pay for a tune once

SSShark · 09-13-2025, 11:34 AM

Borla S-Type will definitely give you a deeper tone. Pretty tame at idle and not so bad on a cold start. Gets good and loud on acceleration and when you get on it.

p47dman · 09-13-2025, 01:05 PM

You can keep npp with Borla, I just put one on a 16 vert this summer. Works and sounds great.

MT-SS1LE · 09-13-2025, 02:08 PM

I went with a Borla Atak axle-back, everything else is stock. I was surprised at how it is only marginally louder than stock, imho. These cars are pretty quiet on the inside with windows up. Unless you really get on it, it sounds pretty much like the stock suitcase muffler. It is louder on the outside, which is pretty much what I wanted.

Spaceme1117 · 09-13-2025, 03:20 PM

Kooks headers with cats into the stock NPP is not much louder than stock at idle or cruising.

SSShark · 09-13-2025, 04:03 PM

Quote:

Originally Posted by p47dman

You can keep npp with Borla, I just put one on a 16 vert this summer. Works and sounds great.

I kept the NPP for those early morning cold starts. It's good to have the option.

Ventmaster · 09-13-2025, 05:54 PM

Quote:

Originally Posted by Knightfall50th

I'd like to keep all the npp intact. I wonder if swapping the secondary cats for a small resonator would do anything?

If you are already discussing swapping the 2nd cats, then just have a local exhaust shop delete them and replace with straight pipe (keep the primaries) and see how you like the sound. Many members have found that to be a good balance with the NPP in Track mode.
I installed a Borla X-pipe that also deleted the 2nd cats (sorry, no longer available- but you can still get their X-pipe) and did a "crushed pipe delete" just because I wanted to but not necessarily needed. Even my neighbors (well, my motorhead neighbors), say it's the best sounding exhaust they've heard in a long while.

09-12-2025, 02:12 PM	#1
Knightfall50th Drives: 2017 SS Camaro Join Date: Aug 2025 Location: Huntsville, AL Posts: 13	Deeper Exhaust Note but Not much Louder I like the stock exhaust but wish it had a deeper note and was less raspy. Anybody accomplish that without making it much louder?

09-12-2025, 02:24 PM	#2
vince3 Drives: 2022 Vivid Orange LT1-M6 Join Date: Dec 2015 Location: Houston TX Posts: 433	My ARH mufflers do this, but without headers that would probably be too quiet. It's hard to explain the sound, it's a different frequency that is deep but not loud. Mine is not this loud because they have cats. https://www.youtube.com/watch?app=desktop&v=dq_iQpE3GuE __________________ 2022 Vivid Orange M6 LT1 - 2" ARH headers with cats (full system), 3" ARH Pure Thunder mufflers, ported MSD intake, Soler 95mm tb, Rotofab CAI, E85 flex fuel, tuned by Jason@snackbartuning Old car 2016 M6 SS - MSD intake, Rotofab, 2" ARH headers with cats, E85 with EFI Tuning. Best ET: 11.7@122mph

09-13-2025, 11:34 AM	#9
SSShark Drives: '23 1SS Sharkskin A10 Join Date: Sep 2018 Location: South Florida Posts: 1,503	Borla S-Type will definitely give you a deeper tone. Pretty tame at idle and not so bad on a cold start. Gets good and loud on acceleration and when you get on it. __________________ Kooks 1-7/8" Long Tube Headers l Kooks Hi-Flow Cats l Kooks X-Pipe l Borla S-Type NPP Exhaust Rotofab CAI l Mishimoto Catch Can l DSX Flex Fuel Sensor l 93/E85 Tune l GM Lowering Kit Ported LT2 Intake Manifold l Ported 95mm LT5 TB l BMR Rear Cradle Lockout Kit Halo Tunnel Brace l MRR 1LE Wheels l Goodyear SC3 1LE Tire Package l 480whp/467wtq

09-13-2025, 02:08 PM	#11
MT-SS1LE Drives: 2023 SS 1LE Sharkskin Join Date: Jun 2023 Location: Montana Posts: 384	I went with a Borla Atak axle-back, everything else is stock. I was surprised at how it is only marginally louder than stock, imho. These cars are pretty quiet on the inside with windows up. Unless you really get on it, it sounds pretty much like the stock suitcase muffler. It is louder on the outside, which is pretty much what I wanted. __________________ ΜΟΛΩΝ ΛΑΒΕ

09-12-2025, 06:37 PM	#3
p47dman Drives: 2024 Camaro 1SS Join Date: Mar 2024 Location: Minnesota Posts: 337	Borla axle back, mine has deep throaty sound when I pound on it. But still does not wake neighbors when I back out of garage.

09-12-2025, 09:57 PM	#6
AZIROC Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019 Location: Arizona Posts: 857	id probably say borla ATAK axle back if you will never get headers. If you think you will do headers, get the s-type.

09-13-2025, 08:59 AM	#7
Knightfall50th Drives: 2017 SS Camaro Join Date: Aug 2025 Location: Huntsville, AL Posts: 13	I'd like to keep all the npp intact. I wonder if swapping the secondary cats for a small resonator would do anything?

09-13-2025, 10:05 AM	#8
AZIROC Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019 Location: Arizona Posts: 857	You would need a tune if you are going to delete your rear cats. If you are going to do that, u might as well get headers and pay for a tune once

09-13-2025, 01:05 PM	#10
p47dman Drives: 2024 Camaro 1SS Join Date: Mar 2024 Location: Minnesota Posts: 337	You can keep npp with Borla, I just put one on a 16 vert this summer. Works and sounds great.

09-13-2025, 03:20 PM	#12
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 856	Kooks headers with cats into the stock NPP is not much louder than stock at idle or cruising.

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