Base SS exhaust

vtirocz · 03-12-2017, 07:14 AM

How does the base SS exhaust sound? I've driven an SS with the NPP option (sounds great!), but haven't yet had the chance to drive one with the standard exhaust.

I've confirmed there's no real power benefit with NPP after speaking with one of the intake/exhaust engineers at the factory fest, so just looking to get feedback on sound.

Thanks.

Gunmetalmissle · 03-12-2017, 07:42 AM

It's not very loud. Definitely louder than most "normal" cars but not by much. I replaced mine with a corsa.

Xsnydx · 03-12-2017, 11:42 AM

It's really only noticeable under WOT when the windows are up, you still need to get on it pretty hard to hear it with the windows down, and very subtle under normal driving conditions...hence my decision to install NOWEEDS diverters so I can basically have a stealth mode and muffler delete mode ��

I'll try to get a quick video in the next couple days so you can hear it before I have my exhaust done, just in case I end up ditching my secondary cats when the diverters go on.

keon718nyc · 03-12-2017, 11:58 AM

Day and night between the two. If you heard the NPP already then you may really hear nothing much but the engine on the non-NPP SS or maybe a cold start you will get some decent exhaust notes. I rented a few 1SS's this past year and all i was thinking is, Dam i wish i had the NPP on here like my 2SS at home.

mariojmoe · 03-12-2017, 01:37 PM

npp is slightly louder but both are quiet tbh (depending on your personal taste)

avalonandl · 03-12-2017, 03:11 PM

If you have an SS without NPP your best choice for the $ is the Chevy accesories SS mufflers that will not affect your warranty and are made by Borla. They are around $ 700 at discount shops. Most axle backs are DOUBLE that.

gdgraph · 03-12-2017, 05:18 PM

It's very quiet, the NPP is louder with valves open but then again even NPP isn't that loud unless you are at WOT.

Many people will upgrade to aftermarket anyways, I'm glad I had the NPP to start with just because I like the quad tip look better and I didn't have to change the "lower cover" on the rear bumper to accommodate the quad tips when I went aftermarket. I also enjoy having the ability to change the mode, right now it doesn't matter much with a cat back but when I go headers I am sure it will come in handy.

Immoralus · 03-12-2017, 07:41 PM

I have the base Non-npp exhaust and just did a muffler delete. I love it!

Alpha1BC · 03-19-2017, 09:02 AM

I started with the non-NPP exhaust with the thought that I could make it loud later (was too late to order a 16, too early to order a 17, but got lucky and found one on a lot with everything I wanted EXCEPT the NPP ). I would say that it's a pretty quiet exhaust. You get some sound if you're standing behind it if someone WOT's it when they're driving away. It's louder than most other production cars in the economy or luxury segments, but nothing I would get excited about.

I ended up going with a local shop in MI, MRT Performance, to get one of their cat-back systems w/o mufflers. If you're looking for something on the louder side, I highly recommend trying to hear one of these cars without mufflers in person. No videos I have seen online are able to do them justice!

Xsnydx · 03-19-2017, 01:07 PM

Finally got the video done as promised, with the added bonus of the NOWEEDS installed.

https://youtu.be/kRcKIMyypnk

03-12-2017, 07:14 AM	#1
vtirocz Drives: 2017 Camaro 1SS M6 Join Date: Apr 2015 Location: Indy Posts: 2,460	Base SS exhaust How does the base SS exhaust sound? I've driven an SS with the NPP option (sounds great!), but haven't yet had the chance to drive one with the standard exhaust. I've confirmed there's no real power benefit with NPP after speaking with one of the intake/exhaust engineers at the factory fest, so just looking to get feedback on sound. Thanks.

03-12-2017, 11:42 AM	#3
Xsnydx Drives: F1FTY 2SS M6 Join Date: Jan 2017 Location: Melbourne, FL Posts: 18	It's really only noticeable under WOT when the windows are up, you still need to get on it pretty hard to hear it with the windows down, and very subtle under normal driving conditions...hence my decision to install NOWEEDS diverters so I can basically have a stealth mode and muffler delete mode �� I'll try to get a quick video in the next couple days so you can hear it before I have my exhaust done, just in case I end up ditching my secondary cats when the diverters go on. Last edited by Xsnydx; 03-12-2017 at 11:49 AM. Reason: Add information

03-12-2017, 03:11 PM	#6
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,018	If you have an SS without NPP your best choice for the $ is the Chevy accesories SS mufflers that will not affect your warranty and are made by Borla. They are around $ 700 at discount shops. Most axle backs are DOUBLE that. __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

03-19-2017, 09:02 AM	#9
Alpha1BC Drives: 2017 1SS 1LE Join Date: Jun 2016 Location: Detroit, MI Posts: 1,000	I started with the non-NPP exhaust with the thought that I could make it loud later (was too late to order a 16, too early to order a 17, but got lucky and found one on a lot with everything I wanted EXCEPT the NPP ). I would say that it's a pretty quiet exhaust. You get some sound if you're standing behind it if someone WOT's it when they're driving away. It's louder than most other production cars in the economy or luxury segments, but nothing I would get excited about. I ended up going with a local shop in MI, MRT Performance, to get one of their cat-back systems w/o mufflers. If you're looking for something on the louder side, I highly recommend trying to hear one of these cars without mufflers in person. No videos I have seen online are able to do them justice! __________________ 2017 SS 1LE.

03-12-2017, 07:42 AM	#2
Gunmetalmissle Drives: 16 ngm ss Join Date: Jan 2017 Location: NJ Posts: 233	It's not very loud. Definitely louder than most "normal" cars but not by much. I replaced mine with a corsa.

03-12-2017, 11:58 AM	#4
keon718nyc Drives: Challenger SP Shaker/Arcadia Denali Join Date: Jan 2016 Location: New York City Posts: 1,928	Day and night between the two. If you heard the NPP already then you may really hear nothing much but the engine on the non-NPP SS or maybe a cold start you will get some decent exhaust notes. I rented a few 1SS's this past year and all i was thinking is, Dam i wish i had the NPP on here like my 2SS at home.

03-12-2017, 01:37 PM	#5
mariojmoe Account Suspended Drives: C7 Z06 manual, 18 Zl1 manual, etc Join Date: Dec 2013 Location: Spring Texas Posts: 1,488	npp is slightly louder but both are quiet tbh (depending on your personal taste)

03-12-2017, 05:18 PM	#7
gdgraph Drives: 2016 Camaro 2SS Join Date: Jun 2016 Location: Arlington, VA Posts: 916 View My Garage	It's very quiet, the NPP is louder with valves open but then again even NPP isn't that loud unless you are at WOT. Many people will upgrade to aftermarket anyways, I'm glad I had the NPP to start with just because I like the quad tip look better and I didn't have to change the "lower cover" on the rear bumper to accommodate the quad tips when I went aftermarket. I also enjoy having the ability to change the mode, right now it doesn't matter much with a cat back but when I go headers I am sure it will come in handy.

03-12-2017, 07:41 PM	#8
Immoralus Drives: 2017 Camaro 1SS A8 Join Date: Jan 2017 Location: Euphrasia Posts: 88	I have the base Non-npp exhaust and just did a muffler delete. I love it!

03-19-2017, 01:07 PM	#10
Xsnydx Drives: F1FTY 2SS M6 Join Date: Jan 2017 Location: Melbourne, FL Posts: 18	Finally got the video done as promised, with the added bonus of the NOWEEDS installed. https://youtu.be/kRcKIMyypnk

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