Homepage Garage Wiki Register Community Calendar Today's Posts Search
#Camaro6
Go Back   CAMARO6 > Engine | Drivetrain | Powertrain Technical Discussions > V8 LT1 Engine, Exhaust, and Bolt-Ons


BeckyD @ James Martin Chevy


Post Reply
 
Thread Tools
Old 10-19-2022, 08:01 PM   #1
JJR11
 
Drives: 2021 Chevy Camaro ss
Join Date: May 2022
Location: Rgv
Posts: 19
Regular Corsa Extreme vs Corsa Extreme NPP

So I have the corsa npp axle back on my Camaro ss and its awesome, today I heard another Camaro SS with the same axle back just not npp. Is there any difference sound wise when open? Closed obviously I know there is a drastic difference, but npp open and regular corsa extreme to me sounds different. I find the non NPP one to be a little more Crisp sounding and it has that (CORSA TONE). Am I crazy or does anyone else hear this ?
JJR11 is offline   Reply With Quote
Old 10-19-2022, 10:24 PM   #2
Chrome383Z
 
Chrome383Z's Avatar
 
Drives: 2019 Camaro 2SS
Join Date: Aug 2020
Location: McCordsville, Indiana
Posts: 622
Corsa extreme without NPP doesn’t utilize the valves. So there will be no change in sound.

NPP open would sound different as you are basically bypassing the muffler. I guess I’m a little confused with the question.
__________________
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.
Chrome383Z is offline   Reply With Quote
Old 10-20-2022, 11:56 AM   #3
jdmartin04
 
jdmartin04's Avatar
 
Drives: 2022 Rapid Blue SS
Join Date: Oct 2022
Location: Baltimore, MD
Posts: 18
Quote:
Originally Posted by Chrome383Z View Post
Corsa extreme without NPP doesn’t utilize the valves. So there will be no change in sound.

NPP open would sound different as you are basically bypassing the muffler. I guess I’m a little confused with the question.
I think he is asking if the NPP version (when open fully) has a different sound/tone than the non-NPP version (which of course is always "open")
jdmartin04 is offline   Reply With Quote
Old 10-20-2022, 02:10 PM   #4
JJR11
 
Drives: 2021 Chevy Camaro ss
Join Date: May 2022
Location: Rgv
Posts: 19
Quote:
Originally Posted by jdmartin04 View Post
I think he is asking if the NPP version (when open fully) has a different sound/tone than the non-NPP version (which of course is always "open")
Yes! Thank you for making my stupidity make sense lol
JJR11 is offline   Reply With Quote
Old 10-22-2022, 08:52 AM   #5
WiggyB
 
WiggyB's Avatar
 
Drives: 2022 Camaro 2SS 1LE
Join Date: Nov 2021
Location: NC
Posts: 412
At a car show a few weeks back I was able to experience exactly what you are asking and technically it shouldn't make a difference but I did notice a little change in the tone. Most will say its nothing but I pay attention to the little things so there was a difference to me.
Without the valves the growl was a little deeper to me.
__________________
d1sc w/ stage 2 intercooler, Lt4 fueling, JMS BAP, lt2 intake, mamo ptb, kooks 1/78 longtube headers w/ h/f cats, alky meth kit, thpsi port injection
WiggyB is offline   Reply With Quote
Old 10-23-2022, 07:30 PM   #6
ALMN
 
ALMN's Avatar
 
Drives: 2SS 1LE M6, Palisade Calligraphy
Join Date: Nov 2021
Location: Minnesota
Posts: 221
So did Corsa fix the NPP valve related issues? One is spring related and the other is the rattle i believe.
ALMN is offline   Reply With Quote
Old 10-24-2022, 09:31 AM   #7
jdmartin04
 
jdmartin04's Avatar
 
Drives: 2022 Rapid Blue SS
Join Date: Oct 2022
Location: Baltimore, MD
Posts: 18
Quote:
Originally Posted by JJR11 View Post
Yes! Thank you for making my stupidity make sense lol
No problem!
jdmartin04 is offline   Reply With Quote
 
Post Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:32 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2026, vBulletin Solutions, Inc.