07-17-2022, 12:16 PM | #1 |
Drives: 2020 Camaro 2LT Join Date: Apr 2022
Location: Missouri
Posts: 17
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2022 SS / NPP
Everyone,
I had a 2020 before my SS, and it had the NPP as well. I cut the resonators out of the last one (was a v6 with NPP) and had a x pipe installed. I am waiting to keep the NPP on my v8 and do some mod similar to this to enhance the sound of the exhaust, but keep the NPP in tact. Can a resonator delete be done to this as well? Wasn’t sure if the v6 to v8 with NPP was drastically different. SMOG is not a concern either, so shoot me with your ideas. Thanks! |
07-21-2022, 11:41 AM | #2 |
BLUPRINT_1LE
Drives: 2022 Rapid Blue SS 1LE Join Date: May 2017
Location: Motor City -> AZ
Posts: 728
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Yes you can delete the resonator on these cars. It will increase sound a tad but not much. Your local muffler shop should be able to do this and it wont cause a Check Engine Light.
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07-21-2022, 12:03 PM | #3 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 1,990
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"resonator"...?
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07-21-2022, 12:17 PM | #4 |
Drives: 2021 LT1 6spd Join Date: Nov 2020
Location: Arlington, VA
Posts: 767
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I do not believe they are resonators, I am fairly certain they are secondary catalytic converters. Pending emissions checks in your area, you can remove them. Not sure I recommend or not, I have not done so.
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Current: 2021 LT1 Camaro, 6spd, Crush, Corsa NPP, GMPP CAI, Soler Performance Throttle controller
Previous: 1997 V6 Camaro, 5spd, Black |
07-21-2022, 06:14 PM | #5 |
Drives: 2024 Black ZL1, M6 Join Date: Mar 2014
Location: Murrieta, CA
Posts: 323
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Just had my secondary cats removed this morning. Slight increase in sound. Noticeable for sure. I like it better.
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07-22-2022, 07:15 AM | #6 |
Drives: 2021 LT1 6spd Join Date: Nov 2020
Location: Arlington, VA
Posts: 767
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In CA? Nice, didn't know you could get away with it over near LA.
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Current: 2021 LT1 Camaro, 6spd, Crush, Corsa NPP, GMPP CAI, Soler Performance Throttle controller
Previous: 1997 V6 Camaro, 5spd, Black |
07-22-2022, 07:55 AM | #7 |
Drives: 22 Camaro 2SS, 20 Subaru Crosstrek Join Date: Aug 2021
Location: DFW TX
Posts: 571
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To be fair - removing them is one thing, passing a smog/emissions test after they are removed is another...
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07-22-2022, 08:02 AM | #8 |
PaPa Smurf
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This is from another user on here. If gutted this way and seal welded back together is will appear that they are still original and complete and won't throw a code. Secondary cats are generally only used during the warm up of the primaries.
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2022 Rapid Blue SS 1LE
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07-22-2022, 11:32 AM | #9 |
Drives: 2024 Black ZL1, M6 Join Date: Mar 2014
Location: Murrieta, CA
Posts: 323
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It will still pass smog. A shop has to put it up on a rack to see they are missing. I’m not worried about it I have ways to get it done and if I have to put them back on before it’s 45 min. Job. The car does not need smog for 6-8 years.
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