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Old 11-13-2022, 09:56 AM   #1
DylansZLE
 
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Exhaust Opinion

Currently I have Kooks catless headers to stock NPP system. I just dont love it like I loved my 5th gen set up like that.

I am thinking about putting the stock manifolds and primary cats back on and switching to the Corsa extreme setup.

What do you all think of the two setups?
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Old 11-14-2022, 07:00 AM   #2
BROCKgoFAST
 
Drives: 2019 Camaro ZL1 1LE
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I have the Corsa Extreme + Catback exhaust and absolutely love it!!
https://youtu.be/V97MnCX4J2s

You will lose power though by taking off your headers and going back to just a catback exhaust.

Im planning on installing headers to go with my exhaust and getting a tune
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Old 11-14-2022, 08:27 AM   #3
SOCAL.M6.ZLE
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Quote:
Originally Posted by DylansZLE View Post
Currently I have Kooks catless headers to stock NPP system. I just dont love it like I loved my 5th gen set up like that.

I am thinking about putting the stock manifolds and primary cats back on and switching to the Corsa extreme setup.

What do you all think of the two setups?

What do you not love? the volume, or tone?
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2022 M6 ZLE: Katech CNC Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation
TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild CC
Coated ARH + AWE Touring + Magnaflow Center X + E85 + MSD Coils + Banks iDash + JMS Booster + Synergy Fender Tank
ALL the RED Rear End BMR Goodies + JRE Terminator Cam Package + Remote Tuning and Moral Support from TED @ JRE
BMR Motor Mounts + DMS Front HX + FIC 30's + APEX SM.10's + 305/345 R888R's = 770rwhp 785rwtq @E50 13.5psi
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Old 11-14-2022, 08:35 AM   #4
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Weld some resonators in the X pipe and you will like it a lot better.
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Old 11-14-2022, 08:36 AM   #5
Slurpee
 
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I put on an AWE Touring catback and it's fantastic. No valves, but I never used the valves on the stock exhaust. There's a very, very small drone on the highway at 2k RPM
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Old 11-14-2022, 10:03 AM   #6
45LongColt
 
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I have the Borla Atak with X pipe and Gesi UHO 1,000hp Cats and Stainless Works headers and just love the system. Zero, zero drone and the NPP valves on the Borla work great.
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Old 11-14-2022, 10:17 AM   #7
Z OH 6


 
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Quote:
Originally Posted by Slurpee View Post
I put on an AWE Touring catback and it's fantastic. No valves, but I never used the valves on the stock exhaust. There's a very, very small drone on the highway at 2k RPM
I have ZERO drone with the AWE resonated touring catback. Maybe you need resonators to eliminate that.
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Old 11-14-2022, 12:49 PM   #8
SOCAL.M6.ZLE
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Quote:
Originally Posted by Z OH 6 View Post
I have ZERO drone with the AWE resonated touring catback. Maybe you need resonators to eliminate that.

I have the same one, and LOVE it... but it was too loud for me even with HF cats... I ended up adding the MF X center muffler to tone it done.
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2022 M6 ZLE: Katech CNC Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation
TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild CC
Coated ARH + AWE Touring + Magnaflow Center X + E85 + MSD Coils + Banks iDash + JMS Booster + Synergy Fender Tank
ALL the RED Rear End BMR Goodies + JRE Terminator Cam Package + Remote Tuning and Moral Support from TED @ JRE
BMR Motor Mounts + DMS Front HX + FIC 30's + APEX SM.10's + 305/345 R888R's = 770rwhp 785rwtq @E50 13.5psi
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Old 11-14-2022, 01:25 PM   #9
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I have Kooks catless headers, and I have some additional resonators in place of the smashed section by the axle. I just dont love the tone/sound like I did from my 5th gen.

Sound level is not the issue, its the sound itself. The resonators I put in did help a lot with the raspiness, but a lot of my research has led to changing the muffler setup.
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Ordered - April 8, 2021 // 2000 - July 30, 2021
3000 - August 3, 2021 // 3100 - August 6, 2021
TPW - August 30
3300 - August 21 // 3400 - August 21
3800 10/18 // 4150 Oct 22
6000 November 1st
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Old 11-14-2022, 01:26 PM   #10
Z OH 6


 
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Quote:
Originally Posted by DylansZLE View Post
I have Kooks catless headers, and I have some additional resonators in place of the smashed section by the axle. I just dont love the tone/sound like I did from my 5th gen.

Sound level is not the issue, its the sound itself. The resonators I put in did help a lot with the raspiness, but a lot of my research has led to changing the muffler setup.
Many people don't love the sound of the stock catback especially with the cats removed.
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Old 11-14-2022, 01:27 PM   #11
AZIROC
 
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Quote:
Originally Posted by DylansZLE View Post
I have Kooks catless headers, and I have some additional resonators in place of the smashed section by the axle. I just dont love the tone/sound like I did from my 5th gen.

Sound level is not the issue, its the sound itself. The resonators I put in did help a lot with the raspiness, but a lot of my research has led to changing the muffler setup.
Which resonators did you go with?
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Old 11-14-2022, 02:24 PM   #12
Slurpee
 
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Quote:
Originally Posted by Z OH 6 View Post
I have ZERO drone with the AWE resonated touring catback. Maybe you need resonators to eliminate that.
I do indeed have non-resonated.
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Old 11-14-2022, 04:20 PM   #13
JonDaddy82
 
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Put an AWE Touring axle-back on it and it should be fine.
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Old 11-14-2022, 05:07 PM   #14
Spaceme1117

 
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I have Kooks headers WITH cats to the stock NPP and its one of the best sounding cars I have ever owned.

Big mistake to not go with cats in a performance exhaust system. I have never heard a car that was catless that did not sound like garbage.
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