6th Gen Camaro bypassing the stock NPP with aftermarket non NPP exhaust

Reddcamaro · 03-22-2020, 02:23 PM

I have a 2018 camaro SS- Ive run it the last 2 1/2 years in Sport mode constantly. I never move it between the different modes, i just don't. Im upgrading my exhaust to the Borla Atak... either cat back / or axle back...(still pondering)...My QUESTION to you all is this. I have the stock exhaust WITH NPP, Do I really need to get the Borla ATAK #11925 ( with NPP) or can I just get the non NPP version, tuck away the NPP's on the car and pull the dang fuse? Its like a $500 diff between them, and if im running them open all the time anyway? AND will it throw a CEL code?

@Borla - please chime in here as well

enzia35 · 03-22-2020, 02:34 PM

Yes, you can just get the non npp and hide the wires.

Abubaca · 03-22-2020, 03:38 PM

Yeah....I think a lot of people get the NPP, and then realize it's not all that it's cracked up to be. I got the AWE system without NPP. AWE didn't have the NPP option, but same idea.

z28pat · 03-24-2020, 08:51 AM

As far as I know even running it in sport mode doesn't mean the valves are always open. They still open and close depending on rpm. You don't have to buy the npp equipped borla. I've held off because I want the capability to close the valves but it's so damn expensive for a cat back or even axle back.

Tricksta · 03-24-2020, 08:59 AM

Quote:

Originally Posted by z28pat

As far as I know even running it in sport mode doesn't mean the valves are always open. They still open and close depending on rpm. You don't have to buy the npp equipped borla. I've held off because I want the capability to close the valves but it's so damn expensive for a cat back or even axle back.

The valves are never always open without a fuse pull.

You do not need NPP, you will not get any CEL either, just hide the wiring and pull the fuse.

keystonemedical · 03-24-2020, 09:24 AM

Quote:

Originally Posted by Reddcamaro

I have a 2018 camaro SS- Ive run it the last 2 1/2 years in Sport mode constantly. I never move it between the different modes, i just don't. Im upgrading my exhaust to the Borla Atak... either cat back / or axle back...(still pondering)...My QUESTION to you all is this. I have the stock exhaust WITH NPP, Do I really need to get the Borla ATAK #11925 ( with NPP) or can I just get the non NPP version, tuck away the NPP's on the car and pull the dang fuse? Its like a $500 diff between them, and if im running them open all the time anyway? AND will it throw a CEL code?

@Borla - please chime in here as well

Ill be by passing the NPP myself to go with a AWE Track catback in the next few weeks, once the weather gets nicer. I never have it off track mode when I drive, and I also have the fuse pulled as well. So, I couldnt see the point in spending the extra money to have the NPP options on the aftermarket exhaust. Yeah, it does suck that Im disabling a feature that the car came with but, I like it loud all the time.

avalonandl · 03-24-2020, 10:34 AM

The main reason to get NPP is to have the ABILITY to be smooth and quiet for the neighbors and loud (relatively) for fun.....

As an overall system it works pretty well. Many people want a different sound....thats what the aftermarket is for.

dmcmahan60 · 03-24-2020, 10:54 AM

Quote:

Originally Posted by keystonemedical

Ill be by passing the NPP myself to go with a AWE Track catback in the next few weeks, once the weather gets nicer. I never have it off track mode when I drive, and I also have the fuse pulled as well. So, I couldnt see the point in spending the extra money to have the NPP options on the aftermarket exhaust. Yeah, it does suck that Im disabling a feature that the car came with but, I like it loud all the time.

I hope you like it loud. The AWE track edition is loud. I have the touring Edition and enjoy it

ssmofo · 03-24-2020, 11:18 AM

The ATTAK is LAF.

enzia35 · 03-24-2020, 02:22 PM

I for one love the NPP ability. It's nice to have it quiet on road trips then loud for around town to scare the women and children.

KLG · 03-24-2020, 04:23 PM

Quote:

Originally Posted by Reddcamaro

I have a 2018 camaro SS- Ive run it the last 2 1/2 years in Sport mode constantly. I never move it between the different modes, i just don't. Im upgrading my exhaust to the Borla Atak... either cat back / or axle back...(still pondering)...My QUESTION to you all is this. I have the stock exhaust WITH NPP, Do I really need to get the Borla ATAK #11925 ( with NPP) or can I just get the non NPP version, tuck away the NPP's on the car and pull the dang fuse? Its like a $500 diff between them, and if im running them open all the time anyway? AND will it throw a CEL code?

@Borla - please chime in here as well

That's pretty much what I've done for my Camaro and my Z06. Installed Borla s-type axle-backs without the NPP option on both vehicles. Filled the vehicles' NPP connector housing pin openings with dielectric grease, then taped securely, then routed the wires out of the way and wire-tied in place. Also, I did not bother to remove the fuse that controls the NPP actuators.

No issues at all, no MILs, no CELs, no codes.

I have not missed the option to control either vehicle's exhaust sound level. Granted the Borla s-type are not that loud compared to the ATAK, but I think the s-type sound better than the stock NPP exhaust.

BlackKnight2SS18 · 03-25-2020, 08:42 PM

If you don’t mind driving around with OEM parts zipped tie to the chassis waiting to come loose and break... go for it. I think of less ghetto-fied things to do to my ride.

Chutzpah · 03-25-2020, 09:13 PM

Quote:

Originally Posted by BlackKnight2SS18

If you don’t mind driving around with OEM parts zipped tie to the chassis waiting to come loose and break... go for it. I think of less ghetto-fied things to do to my ride.

On one hand I agree, I don’t like exposed or loose connectors either. And there is the loss of functionality you paid for which is programmed into the car.

On the other hand, the connector and wires are pretty tiny. If proper car is taken IE dielectric grease / sealing off the end, tucking up neatly and tying off, they’ll never move / cause an issue.

If you get the sound you want, one way or the other, it’s all good.

KLG · 03-26-2020, 02:37 PM

Quote:

Originally Posted by Chutzpah

On one hand I agree, I don’t like exposed or loose connectors either. And there is the loss of functionality you paid for which is programmed into the car.

On the other hand, the connector and wires are pretty tiny. If proper car is taken IE dielectric grease / sealing off the end, tucking up neatly and tying off, they’ll never move / cause an issue.

If you get the sound you want, one way or the other, it’s all good.

Precisely. Dual mode is a great feature, just not a feature I am interested in using.

And this really is not much different than any other modification we do to our cars.

With a little work, I can go back to a dual mode exhaust system at anytime.

03-22-2020, 02:34 PM	#2
enzia35 Drives: '16 Garnet Red 1SS Join Date: Mar 2014 Location: College Station, TX Posts: 3,450	Yes, you can just get the non npp and hide the wires. __________________ '16 Camaro 1SS '18 Miata GT Gone: '01 Camaro, '14 Camaro, '90 Miata

03-24-2020, 10:34 AM	#7
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,019	The main reason to get NPP is to have the ABILITY to be smooth and quiet for the neighbors and loud (relatively) for fun..... As an overall system it works pretty well. Many people want a different sound....thats what the aftermarket is for. __________________ 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

03-24-2020, 02:22 PM	#10
enzia35 Drives: '16 Garnet Red 1SS Join Date: Mar 2014 Location: College Station, TX Posts: 3,450	I for one love the NPP ability. It's nice to have it quiet on road trips then loud for around town to scare the women and children. __________________ '16 Camaro 1SS '18 Miata GT Gone: '01 Camaro, '14 Camaro, '90 Miata

03-22-2020, 02:23 PM	#1
Reddcamaro Drives: 2018 Camaro SS /Redline Join Date: Mar 2020 Location: Oklahoma (USA) Posts: 1	6th Gen Camaro bypassing the stock NPP with aftermarket non NPP exhaust I have a 2018 camaro SS- Ive run it the last 2 1/2 years in Sport mode constantly. I never move it between the different modes, i just don't. Im upgrading my exhaust to the Borla Atak... either cat back / or axle back...(still pondering)...My QUESTION to you all is this. I have the stock exhaust WITH NPP, Do I really need to get the Borla ATAK #11925 ( with NPP) or can I just get the non NPP version, tuck away the NPP's on the car and pull the dang fuse? Its like a $500 diff between them, and if im running them open all the time anyway? AND will it throw a CEL code? @Borla - please chime in here as well

03-22-2020, 03:38 PM	#3
Abubaca Drives: 2016 SS Join Date: Oct 2019 Location: Jamestown NC Posts: 451	Yeah....I think a lot of people get the NPP, and then realize it's not all that it's cracked up to be. I got the AWE system without NPP. AWE didn't have the NPP option, but same idea.

03-24-2020, 08:51 AM	#4
z28pat Drives: 2002 z28, 2018 2ss 1LE Join Date: Sep 2012 Location: Parrish, Florida Posts: 836	As far as I know even running it in sport mode doesn't mean the valves are always open. They still open and close depending on rpm. You don't have to buy the npp equipped borla. I've held off because I want the capability to close the valves but it's so damn expensive for a cat back or even axle back.

03-24-2020, 11:18 AM	#9
ssmofo Drives: Chevy Camaro Join Date: Jul 2019 Location: Dallas Posts: 420	The ATTAK is LAF.

03-25-2020, 08:42 PM	#12
BlackKnight2SS18 Account Suspended Drives: 2018 2SS Redline Join Date: Jan 2019 Location: Florida Posts: 85	If you don’t mind driving around with OEM parts zipped tie to the chassis waiting to come loose and break... go for it. I think of less ghetto-fied things to do to my ride.

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