Worth doing axleback exhaust?

Daltonluoma118 · 03-28-2021, 08:36 PM

I have a 2017 camaro ss with NPP and I’m curious if it is worth upgrading to an aftermarket axle back or catback. Is it really much louder or not really? I’ve seen mixed reviews but don’t want to waste the money if it isn’t a good difference. I may do headers down the road but not anytime soon.

Vaska · 03-28-2021, 09:42 PM

Yes there is a difference. Lots of info on axle back exhausts, search.

ThirstyDave · 03-29-2021, 12:43 AM

It's worth if you want a different sound, tone and want it louder. I went with a Stainless works axle back because I got a great deal and I didn't like the rasp and higher pitched tone with npp and catless headers.

avalonandl · 03-29-2021, 08:26 AM

You spent $ 900 on NPP and you want to spend another $ 800 to 1200 ????

laynlo15 · 03-30-2021, 07:44 AM

Its probably not going to improve the performance but sound will be usually louder. Plenty of us have made 850 rwhp with stock cat back Npp. I only had long tubes/xpipe and still made well over 850 and ran 9.40@147 with it so its no very restrictive in my opinion and the performance shows that also.

Chrome383Z · 03-30-2021, 08:12 AM

Only reason to change is sound. I was going to get the corsa system but then decided to just keep the $$$ in my pocket.

This fall I’m going FBO E85 with 2” CSP headers and their new high flow cats... plan on keeping the stock NPP at least for the short term. If I don’t like the sound I might consider it but I want to see how it sounds with stock NPP before dropping $2k on a corsa ab...

LT1ornothing · 03-30-2021, 08:55 AM

Quote:

Originally Posted by Daltonluoma118

I have a 2017 camaro ss with NPP and I’m curious if it is worth upgrading to an aftermarket axle back or catback. Is it really much louder or not really? I’ve seen mixed reviews but don’t want to waste the money if it isn’t a good difference. I may do headers down the road but not anytime soon.

I wouldn't mess with it since it has the npp, if track mode and fuse pull aren't enough for you, look into rear cat delete if your state does not do visual emissions inspections. The rear cat delete should make it louder and deeper. Several forum members happily run that set up.

I on the other hand had no npp on my car, and the axle back prices I saw were outrageous, so I had a muffler delete done and couldn't be happier. Saved a ton of money, got the sound I wanted, and the kicker is the car is 30 lbs lighter.

Vaska · 03-30-2021, 10:35 AM

A muffler delete (straight pipes) is extremely loud and drones like a mofo, not everyone will be into that. I'd wait for a used axle back to in the classifieds, that's what I did and couldn't be happier on the cost and sound.

Jaxcam02 · 03-30-2021, 10:48 AM

No, save your money for engine work or long tubes or something. The money to power ratio increase is tragically ineffective for an axle back exhaust.

LT1ornothing · 03-30-2021, 11:09 AM

Quote:

Originally Posted by Vaska

A muffler delete (straight pipes) is extremely loud and drones like a mofo, not everyone will be into that. I'd wait for a used axle back to in the classifieds, that's what I did and couldn't be happier on the cost and sound.

This has not been my experience, only the cold start is loud and after it warms up its hardly louder at idle than with the muffler on. Cruising is also quiet, very easy to have a conversation with a passenger. , it's only loud when I give it throttle. As to drone, I don't notice it, mine is an m6 so maybe your experience was with an automatic. For what it's worth, when the warranty is up, I intend to put the factory muffler back on when I do 2" long tube headers and catless midpipes.

As previously mentioned, I'm sure the OP would be happy with a track+fuse pull and a rear cat delete as so many other members have done, if he can get away with it in his state.

Gunkk · 03-30-2021, 11:16 AM

Quote:

Originally Posted by Daltonluoma118

I have a 2017 camaro ss with NPP and I’m curious if it is worth upgrading to an aftermarket axle back or catback. Is it really much louder or not really? I’ve seen mixed reviews but don’t want to waste the money if it isn’t a good difference. I may do headers down the road but not anytime soon.

Borla Atak w/ NPP is plenty loud. Yes, it's a lot louder like piss off the neighbors louder. S-type will also be louder, but not crazy like ATAK. "Waste" is a matter of perspective. Is $3k too much for you?

If you go headers, then keep the stock suitcase, as it'll likely sound better than the Borla+headers.

For me, the stock NPP is fine and any $ spent on exhaust would be a waste: with the top down NPP in track mode it's just right.

enzia35 · 03-30-2021, 11:35 AM

I thought my ATAK was a great purchase. Headers...eventually.

WhiteMale · 03-30-2021, 12:28 PM

Axle-back for sound/volume, track mode and/or fuse pull was too tame for me personally. The only way IMHO you can get in to it though because some are exorbitantly priced, you go axle back with MBRP or Solo where you can do that for <1K. There's little to no reason at all to go cat back with these cars. Borla and Corsa are clown world expensive for what they are.

LT1ornothing · 03-30-2021, 01:04 PM

Quote:

Originally Posted by WhiteMale

Axle-back for sound/volume, track mode and/or fuse pull was too tame for me personally. The only way IMHO you can get in to it though because some are exorbitantly priced, you go axle back with MBRP or Solo where you can do that for <1K. There's little to no reason at all to go cat back with these cars. Borla and Corsa are clown world expensive for what they are.

You ain't kidding man, highway robbery on the corsa and borla. Great sounding but they're not worth their asking price to me.

03-28-2021, 08:36 PM	#1
Daltonluoma118 Drives: 2017 camaro ss Join Date: Mar 2021 Location: Superior wi Posts: 1	Worth doing axleback exhaust? I have a 2017 camaro ss with NPP and I’m curious if it is worth upgrading to an aftermarket axle back or catback. Is it really much louder or not really? I’ve seen mixed reviews but don’t want to waste the money if it isn’t a good difference. I may do headers down the road but not anytime soon.

03-29-2021, 08:26 AM	#4
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,019	You spent $ 900 on NPP and you want to spend another $ 800 to 1200 ???? __________________ 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

03-30-2021, 07:44 AM	#5
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Its probably not going to improve the performance but sound will be usually louder. Plenty of us have made 850 rwhp with stock cat back Npp. I only had long tubes/xpipe and still made well over 850 and ran 9.40@147 with it so its no very restrictive in my opinion and the performance shows that also. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

03-30-2021, 08:12 AM	#6
Chrome383Z Drives: 2019 Camaro 2SS Join Date: Aug 2020 Location: McCordsville, Indiana Posts: 621	Only reason to change is sound. I was going to get the corsa system but then decided to just keep the $$$ in my pocket. This fall I’m going FBO E85 with 2” CSP headers and their new high flow cats... plan on keeping the stock NPP at least for the short term. If I don’t like the sound I might consider it but I want to see how it sounds with stock NPP before dropping $2k on a corsa ab... __________________ 2019 Shock 2SS A10. 2650@10psi/LPE HPFP/XDI+30/LT4 LPFP+JMS/Soler 95mm/Rotofab, E65, CSP 2” Headers/GESI GenII Cats. MM Wild/GM SG3 suspension/1LE Brakes, Velgen VF5 Wheels/GY SC3. JRE Tuned.

03-30-2021, 10:48 AM	#9
Jaxcam02 Drives: 2017 Silverado/2017 ZL1 Join Date: Aug 2019 Location: Jax/Palatka FL Posts: 1,090	No, save your money for engine work or long tubes or something. The money to power ratio increase is tragically ineffective for an axle back exhaust. __________________

03-28-2021, 09:42 PM	#2
Vaska Drives: On Hiatus Join Date: Apr 2020 Location: Sask Posts: 314	Yes there is a difference. Lots of info on axle back exhausts, search.

03-29-2021, 12:43 AM	#3
ThirstyDave Drives: 2017 Camaro 2SS 50th Anniversary Join Date: Sep 2017 Location: 408 Bay Area Posts: 81	It's worth if you want a different sound, tone and want it louder. I went with a Stainless works axle back because I got a great deal and I didn't like the rasp and higher pitched tone with npp and catless headers.

03-30-2021, 10:35 AM	#8
Vaska Drives: On Hiatus Join Date: Apr 2020 Location: Sask Posts: 314	A muffler delete (straight pipes) is extremely loud and drones like a mofo, not everyone will be into that. I'd wait for a used axle back to in the classifieds, that's what I did and couldn't be happier on the cost and sound.

03-30-2021, 11:35 AM	#12
enzia35 Drives: '16 Garnet Red 1SS Join Date: Mar 2014 Location: College Station, TX Posts: 3,450	I thought my ATAK was a great purchase. Headers...eventually. __________________ '16 Camaro 1SS '18 Miata GT Gone: '01 Camaro, '14 Camaro, '90 Miata

03-30-2021, 12:28 PM	#13
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,982	Axle-back for sound/volume, track mode and/or fuse pull was too tame for me personally. The only way IMHO you can get in to it though because some are exorbitantly priced, you go axle back with MBRP or Solo where you can do that for <1K. There's little to no reason at all to go cat back with these cars. Borla and Corsa are clown world expensive for what they are.

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