2010 SS Camaro GM factory performance exhaust question/help - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

rfs · 08-08-2019, 06:35 AM

Hey guys. I recently purchased a 2010 2SS camaro and it has the performance exhaust package and recently added BBK LT headers. Before the headers were installed it was was louder than any other stock SS I have seen/heard. Now the headers are installed (and CAI) it sounds like a totally new beast. My main question is what exactly does the performance exhaust package include? My knowledge is very limited so please work with me. As mean as it sounds now the Headers are installed, it is a little too raspy for my taste and am also looking to upgrade to something the a deeper tone and would love recommendations. My budget is limits me to an axle back rather than a full catback, I am considering the borla S type or flowmaster american thunder.

- i went catless btw, Any input helps!

Benman · 08-08-2019, 07:12 AM

You will have designation of NPP on the RPO tag in the trunk, left side. It is a vacuum operated system that controls chambers in the mufflers, you will also have quad tips out back. Under hard acceleration it opens a straight thru chamber in the mufflers. I have LTH, no cats, 3 inch back to my factory NPP exhaust, fits my taste.

Avenging Orange · 08-08-2019, 12:49 PM

Must be aftermarket. Don't believe that option was available in 2010

Rich2010 · 08-08-2019, 12:50 PM

Your 2010 won’t have the NPP from the factory unless someone added it, more than likely someone changed your axle/catback. Can you snag a picture of the mufflers(if there are any) by the rear bumper.

ChibiBlackSheep · 08-08-2019, 01:10 PM

GM sometimes offer "GMPP" variants of their exhaust. I believe they had an axle-back that you could buy for the car that was an unbranded Borla. So you might already have a borla axle-back on your car.

rfs · 08-08-2019, 03:13 PM

Quote:

Originally Posted by ChibiBlackSheep

GM sometimes offer "GMPP" variants of their exhaust. I believe they had an axle-back that you could buy for the car that was an unbranded Borla. So you might already have a borla axle-back on your car.

The mufflers say GM factory performance. But I believe you are 100 % correct. So where do I go from here? would purchasing the borla S type axle back even be an upgrade? I want it loud but I want it deep. Other wise I would go with the ATAK.

ChibiBlackSheep · 08-08-2019, 03:28 PM

Yeah that's the GMPP axle-back that they optioned the car with.

I'm not sure what is really deep on a catless LT setup. Especially only doing an axle-back.

I would save up for a cat-back s-type and then try to sell your axle-back to make up some of the cost. I don't think any axle-back will give you the tone that you want.

Hell, even just putting a stock LS3 cat-back on might give you a good tone. Just not crazy loud.

rfs · 08-08-2019, 04:01 PM

Quote:

Originally Posted by ChibiBlackSheep

Yeah that's the GMPP axle-back that they optioned the car with.

I'm not sure what is really deep on a catless LT setup. Especially only doing an axle-back.

I would save up for a cat-back s-type and then try to sell your axle-back to make up some of the cost. I don't think any axle-back will give you the tone that you want.

Hell, even just putting a stock LS3 cat-back on might give you a good tone. Just not crazy loud.

Appreciate you're input. What do you think about adding an X pipe to my current "borla like" axle back. Would that basically make it a catback no?

Avenging Orange · 08-09-2019, 08:10 AM

A cat back is really just a name. It will give you no discernable performance gain......only mild change in tone. (And that depends on what you are combining it with) My suggestion; add some cats and go from there.

ChibiBlackSheep · 08-09-2019, 08:12 AM

Quote:

Originally Posted by rfs

Appreciate you're input. What do you think about adding an X pipe to my current "borla like" axle back. Would that basically make it a catback no?

Yeah you could try that, or adding in catted downpipe connections to your longtubes.

pyroguy · 08-09-2019, 09:16 AM

If you went catless then you'll need to add cats to tone down rasp. As for your exhaust it is an axle back exhaust that sounded MUCH better than the normal suitcase mufflers that were installed on 2010's standard. If you're wanting a deep sounding exhaust you'll want Stainless Works Retro Chambered catback. I think there's a used one for sale in the for sale sub-forum. It is a great sounding exhaust and the deepest I've heard. However, I run Solo Perfomance mach xl catback and I LOVE it. It has a great "old school" muscle car tone, IMO.

08-08-2019, 06:35 AM	#1
rfs Drives: 2010 ss camaro Join Date: Jul 2019 Location: tampa Posts: 17	2010 SS Camaro GM factory performance exhaust question/help Hey guys. I recently purchased a 2010 2SS camaro and it has the performance exhaust package and recently added BBK LT headers. Before the headers were installed it was was louder than any other stock SS I have seen/heard. Now the headers are installed (and CAI) it sounds like a totally new beast. My main question is what exactly does the performance exhaust package include? My knowledge is very limited so please work with me. As mean as it sounds now the Headers are installed, it is a little too raspy for my taste and am also looking to upgrade to something the a deeper tone and would love recommendations. My budget is limits me to an axle back rather than a full catback, I am considering the borla S type or flowmaster american thunder. - i went catless btw, Any input helps!

08-08-2019, 07:12 AM	#2
Benman Drives: 13 IOM 2ss RS manual Join Date: Jun 2018 Location: Euless,TX Posts: 213	You will have designation of NPP on the RPO tag in the trunk, left side. It is a vacuum operated system that controls chambers in the mufflers, you will also have quad tips out back. Under hard acceleration it opens a straight thru chamber in the mufflers. I have LTH, no cats, 3 inch back to my factory NPP exhaust, fits my taste. __________________ Rectangular Dollars will beat Cubic Inches

08-08-2019, 12:49 PM	#3
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Must be aftermarket. Don't believe that option was available in 2010 __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

08-08-2019, 12:50 PM	#4
Rich2010 Drives: 2010 Cyber Gray LS3 SS/RS Join Date: Jul 2017 Location: Barre, Ma Posts: 107	Your 2010 won’t have the NPP from the factory unless someone added it, more than likely someone changed your axle/catback. Can you snag a picture of the mufflers(if there are any) by the rear bumper. __________________ 2010 Cyber Gray LS3-BTR stage 4-480/428 RXT and 3.91’s

08-08-2019, 01:10 PM	#5
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,085	GM sometimes offer "GMPP" variants of their exhaust. I believe they had an axle-back that you could buy for the car that was an unbranded Borla. So you might already have a borla axle-back on your car. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

08-08-2019, 03:28 PM	#7
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,085	Yeah that's the GMPP axle-back that they optioned the car with. I'm not sure what is really deep on a catless LT setup. Especially only doing an axle-back. I would save up for a cat-back s-type and then try to sell your axle-back to make up some of the cost. I don't think any axle-back will give you the tone that you want. Hell, even just putting a stock LS3 cat-back on might give you a good tone. Just not crazy loud. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

08-09-2019, 08:10 AM	#9
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	A cat back is really just a name. It will give you no discernable performance gain......only mild change in tone. (And that depends on what you are combining it with) My suggestion; add some cats and go from there. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

08-09-2019, 09:16 AM	#11
pyroguy Started#gottalovethatblue Drives: ABM #831 Join Date: Apr 2013 Location: TN Posts: 6,917 View My Garage	If you went catless then you'll need to add cats to tone down rasp. As for your exhaust it is an axle back exhaust that sounded MUCH better than the normal suitcase mufflers that were installed on 2010's standard. If you're wanting a deep sounding exhaust you'll want Stainless Works Retro Chambered catback. I think there's a used one for sale in the for sale sub-forum. It is a great sounding exhaust and the deepest I've heard. However, I run Solo Perfomance mach xl catback and I LOVE it. It has a great "old school" muscle car tone, IMO. __________________ '10 Camaro 2SS/RS \| Aqua Blue #831 of 3,903 \| Silver Stripes Check out my build thread