2019-2025 Silverado & Sierra Engine & Transmission (L3B/L82/L84/L87/LM2/LZ0)

1,039 topics in this forum

1. Normal Engine/trans temps 1 2

   By mandrewbot3k, April 11, 2021
   • 15 replies
   • 2.3k views
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   • redwngr
   • April 12, 2021

3. 3.0 Fuel Filter

   By mjonesjr84, April 11, 2021
   • 7 replies
   • 10.4k views
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   • mjonesjr84
   • April 12, 2021

4. 2019 Silverado jerk when coming to a stop

   By jtranger, April 8, 2021
   • 3 replies
   • 1.8k views
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   • luke1333
   • April 12, 2021

5. Vibration 3500 Dually

   By Ralph Topper, March 10, 2021
   • 1 reply
   • 1.8k views
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   • Josh42089
   • April 6, 2021

6. 2020/2021 8 speed problems

   By dgstarr63, April 4, 2021
   • 5 replies
   • 17.1k views
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   • redwngr
   • April 5, 2021

7. Most mild exhaust

   By RPaul, March 29, 2021
   • 10 replies
   • 3.2k views
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   • Jacob Capra
   • April 3, 2021

8. Towing at 80 mph. 1 2

   By AudiOn19s, October 26, 2020
   • 16 replies
   • 6.9k views
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   • KARNUT
   • April 3, 2021

9. .

   By Firehawk99, March 29, 2021
   • 0 replies
   • 393 views
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   • Firehawk99
   • March 29, 2021

10. Flowmaster FlowFX 1 2 3

    By mrcribbs, April 7, 2019
    • 30 replies
    • 14.1k views
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    • Sublym808_RST
    • March 29, 2021

11. S&B Cold Air Intake 1 2 3 4

    By BluegrassMotorsport, January 8, 2021
    • 53 replies
    • 17.4k views
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    • Kickerz71
    • March 29, 2021

12. 2021 GMC Sierra 1500 Denali Emissions Standards and Color

    By Ty_1_On, March 28, 2021
    • 0 replies
    • 548 views
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    • Ty_1_On
    • March 28, 2021

13. TSB document for the 6.2L valve spring problem

    By kodiakdenali, January 15, 2021
    • 7 replies
    • 10.5k views
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    • IOMTT
    • March 28, 2021

14. Diff fluid?

    By Moledigger2019, March 22, 2021
    • 4 replies
    • 1.2k views
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    • IOMTT
    • March 28, 2021

15. Size / offset of flowmaster 44

    By Dannoo, March 17, 2021
    • 4 replies
    • 2.2k views
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    • Dannoo
    • March 28, 2021

16. Range Disabler no worky on my 2020 8 speed

    By Travis Crawford, March 25, 2021
    • 1 reply
    • 797 views
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    • Jac365
    • March 26, 2021

17. Thrush Mufflers

    By rdmsyr, February 27, 2021
    • 5 replies
    • 2.1k views
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    • yzinger
    • March 26, 2021

18. 21 6.2 S$B CAI install; Check engine light

    By 21AT4NJ, March 24, 2021
    • 4 replies
    • 1.3k views
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    • RStrain56
    • March 25, 2021

19. Borla atak with electronic valve before resonators

    By Allterrain, March 21, 2021
    • 1 reply
    • 910 views
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    • Offroadman00
    • March 25, 2021

20. Anyone in North Florida with a Borla Exhaust?

    By Offroadman00, March 25, 2021
    • 0 replies
    • 401 views
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    • Offroadman00
    • March 25, 2021

21. 2020 5.3L Tune ?

    By AB77, March 24, 2021
    • 3 replies
    • 899 views
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    • Descartian
    • March 24, 2021

22. 3.0L DPF Regen

    By redwngr, March 24, 2021
    • 0 replies
    • 891 views
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    • redwngr
    • March 24, 2021

23. Flowmaster, Borla, Magnaflow or straight pipe? (Video comparison) 1 2 3 4

    By econometrics, July 12, 2019
    • 48 replies
    • 29.5k views
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    • Yfz43gmc
    • March 24, 2021

24. Flowmaster FlowFX Cat Back - My Experience

    By Diamond817, March 20, 2021
    • 12 replies
    • 4.3k views
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    • Diamond817
    • March 24, 2021

25. AFE OEM Replacement Air Filter

    By mjonesjr84, March 23, 2021
    • 4 replies
    • 919 views
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    • gemarsh
    • March 24, 2021

26. Duratrac's that loud? 1 2

    By Moledigger2019, February 25, 2021
    • 23 replies
    • 15.3k views
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    • Transient
    • March 23, 2021