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03-16-2026, 06:03 PM
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#1 |
 Drives: 2017 Camaro SS Join Date: Mar 2026
Location: Maine
Posts: 1
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Is there a difference between MY 20 and MY 23 zl1's
People claim my 10 speed 23 zl1's feel faster and are faster 60-130 (6-7 sec vs low 8's) than previous year 10 speed auto zl1s. Ive seen some claims that 2023 zl1 dyno at 590 and previous years at 530-560 hp) 2022+ gained pankl rod I believe. Ive heard some claim the supercharger in 2023 gained vacuum bypass vs electric in older years.
https://www.facebook.com/groups/5327...9449810144419/ |
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03-16-2026, 07:11 PM
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#2 |
         Drives: 2024 CT5-V Blackwing Join Date: Sep 2020
Location: GA
Posts: 3,557
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No differences. My 2021 ZL1 A10 dyno'd 598whp stock. All dyno's are different though but it's pretty rare to see a stock ZL1 dyno below 560whp.
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