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NPP exhaust on 2020 SS seems too quiet
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11-14-2025, 05:26 PM
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Navigator
Drives: 2020 Camaro 2SS
Join Date: Sep 2017
Location: USA
Posts: 165
I was thinking about a secondary cat delete but wondering if something else might be going on before I do that. I seem to remember my 2017 SS being a lot louder at startup and low RPMs.
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