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

969 topics in this forum

1. My feedback on the Silverado/Sierra 2.7L versus Ford F-150 2.7L

   By Nervouswater, March 27, 2020
   • 2 replies
   • 1.5k views
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   • Ricomtzjr
   • April 27, 2020

3. 2019 Gmc elevation 6 speed Offset wheels vs spacers

   By Cody H, April 26, 2020
   • 3 replies
   • 1.9k views
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   • Memphis87
   • April 26, 2020

4. Does your truck have Pinion Shims?

   By hotrodz37, April 25, 2020
   • 4 replies
   • 1.8k views
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   • hotrodz37
   • April 25, 2020

5. K&N Exhaust System

   By James Cavalero, April 17, 2020
   • 2 replies
   • 749 views
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   • redwngr
   • April 22, 2020

6. 2019 Sierra DFM - RANGE WORKS! 1 2

   By ls1wolf, February 5, 2020
   • 16 replies
   • 3.2k views
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   • TRKLGND
   • April 21, 2020

7. Stock Exhaust

   By GMC19Sierra, March 9, 2020   

   • gmc
   • exhaust
   • (and 1 more)

     Tagged with:

     • gmc
     • exhaust
     • sierra
   • 5 replies
   • 1.5k views
   • 
   • Gangly
   • April 21, 2020

8. L84 engine & E85

   By TRKLGND, April 20, 2020
   • 2 replies
   • 6.4k views
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   • Black02Silverado
   • April 20, 2020

9. Tired of the research 1 2

   By Chevynoob, April 17, 2020
   • 17 replies
   • 2.1k views
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   • Chevynoob
   • April 18, 2020

10. 35s 6.2L 10spd 3:23s 1 2

    By Anakalypto, April 11, 2020
    • 25 replies
    • 8.1k views
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    • Anakalypto
    • April 18, 2020

11. Trail Boss 6.2 exhaust recommendations

    By William Lowe, April 9, 2020
    • 3 replies
    • 9.5k views
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    • AKinlaw
    • April 14, 2020

12. 3.0 Duramax Oil Availability

    By Time2gofishing1980, April 12, 2020
    • 3 replies
    • 1k views
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    • Time2gofishing1980
    • April 14, 2020

13. Kooks catback anyone?

    By Fireman02, April 12, 2020
    • 1 reply
    • 471 views
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    • lt1z
    • April 12, 2020

14. Muffler delete vs swap vs cat back 1 2 3

    By highbl00d, March 7, 2020
    • 32 replies
    • 11k views
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    • RadoPhan
    • April 12, 2020

15. Do I need to re-gear ?

    By Cbaur, March 18, 2020
    • 2 replies
    • 643 views
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    • Anakalypto
    • April 11, 2020

16. Fluctuation in oil pressue

    By maine shadow, April 8, 2020
    • 8 replies
    • 9.5k views
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    • maine shadow
    • April 10, 2020

17. Leveling at4s and trail boss

    By Joe McCue, April 3, 2020
    • 3 replies
    • 903 views
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    • JustinF
    • April 6, 2020

18. flowmaster active valve exhaust

    By Snail77, April 5, 2020
    • 1 reply
    • 1.3k views
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    • bshort
    • April 6, 2020

19. Rough Country Cat-Back Exhaust

    By west1nm, February 19, 2020
    • 12 replies
    • 20.3k views
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    • BLK- 2020 TB
    • April 2, 2020

20. Dfm work around 1 2

    By Moosebeavers, October 27, 2019
    • 23 replies
    • 19.1k views
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    • Anakalypto
    • April 2, 2020

21. 5.3 GM performance package question 1 2

    By mistaare, January 26, 2020
    • 21 replies
    • 4.6k views
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    • xsquid
    • March 30, 2020

22. Best performing exhaust with quite sound 1 2 3 4

    By WyoAT4, December 28, 2019
    • 55 replies
    • 8.9k views
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    • bshort
    • March 28, 2020

23. Whipple 3.0 1 2

    By 570590, March 14, 2020
    • 22 replies
    • 6.2k views
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    • lt1z
    • March 24, 2020

24. Wiring and transmission troubles

    By 2019 Sierra lemon, March 16, 2020
    • 2 replies
    • 452 views
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    • BlancoSilverado
    • March 23, 2020

25. 3.0L Diesel Emissions

    By chris84, March 17, 2020
    • 0 replies
    • 485 views
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    • chris84
    • March 17, 2020

26. Lowered now feeling those good vibrations

    By spdfrk31, March 9, 2020
    • 1 reply
    • 681 views
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    • Bobv07662
    • March 16, 2020