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

1,039 topics in this forum

1. Noise on acceleration ?

   By 204Denali, October 27, 2020
   • 10 replies
   • 3.5k views
   • 
   • 204Denali
   • October 28, 2020

3. New dual exhaust - 2.5" vs 3" Back pressure/exhaust velocity

   By Travis Crawford, October 27, 2020
   • 3 replies
   • 2.2k views
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   • TNTSierra
   • October 27, 2020

4. 2020 3.0 Duramax aftermarket wheels

   By AlexB, October 25, 2020
   • 4 replies
   • 2.2k views
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   • AlexB
   • October 27, 2020

5. 2019 LT Trail Boss gear swap

   By rramit69, October 19, 2020
   • 9 replies
   • 5.3k views
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   • Rob Mugs
   • October 27, 2020

6. Squeaky brakes

   By ian cloutier, October 18, 2020
   • 4 replies
   • 920 views
   • 
   • Sqrls
   • October 26, 2020

7. Feedback on Range for DFM? 1 2

   By Pappy58, June 27, 2020
   • 21 replies
   • 8.5k views
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   • Tjeli
   • October 24, 2020

8. 4.3L question 1 2 3 4

   By 20silverado20, October 20, 2020
   • 51 replies
   • 4.1k views
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   • TXGREEK
   • October 24, 2020

9. Throttle Sensitivity Booster

   By Keithstr20xhp, October 14, 2020
   • 8 replies
   • 2.1k views
   • 
   • AlexB
   • October 20, 2020

10. Borla cat-back SQUARE tips pic?

    By lapoolboy, October 19, 2020
    • 1 reply
    • 728 views
    • 
    • JWOutdoors29
    • October 20, 2020

11. Anyone have duramax 3.0 w/ 3.73 rear?

    By Chvypowa, October 4, 2020
    • 1 reply
    • 6.1k views
    • 
    • AlexB
    • October 17, 2020

12. AT4 levelling kit failure

    By 19AT4, June 18, 2020
    • 13 replies
    • 28k views
    • 
    • ZDAT4
    • October 16, 2020

13. Borla Touring Vs. GM Performance 1 2 3 4

    By [email protected], March 21, 2020
    • 56 replies
    • 46.5k views
    • 
    • TXGREEK
    • October 14, 2020

14. 2021 GMC Sierra 6.2L HP??

    By rcslotcar, October 10, 2020
    • 3 replies
    • 2.1k views
    • 
    • Steve-2019
    • October 10, 2020

15. 10 speed seems to have a lot of torque management

    By SILVER SLED, October 10, 2020
    • 5 replies
    • 1.8k views
    • 
    • SILVER SLED
    • October 10, 2020

16. AutoSync+Warranty

    By Rob Mugs, October 9, 2020
    • 2 replies
    • 1.1k views
    • 
    • Rob Mugs
    • October 9, 2020

17. Anyone have a flapper for a 6.2 they want to get rid of? 1 2

    By SIK67SS, September 17, 2020
    • 21 replies
    • 3.7k views
    • 
    • RyanbabZ71
    • October 7, 2020

18. stock muffler with resonator mesh covered?

    By Robwcormack, April 24, 2019
    • 13 replies
    • 23.1k views
    • 
    • Jp sierra
    • October 5, 2020

19. Borla ProXS on 5.3

    By Centex14, October 3, 2020
    • 0 replies
    • 672 views
    • 
    • Centex14
    • October 3, 2020

20. Borla Touring muffler size?

    By Jav_eee, September 29, 2020
    • 4 replies
    • 833 views
    • 
    • Jav_eee
    • October 1, 2020

21. 2020 Silverado Performance

    By Robert J Heintz, September 25, 2020
    • 6 replies
    • 1.7k views
    • 
    • M1ck3y
    • October 1, 2020

22. Low oIl pressure and poor cold idle on 2.7 litre.

    By TBistue01, September 8, 2019
    • 9 replies
    • 30.5k views
    • 
    • Mgann92930
    • September 28, 2020

23. Borla Atak CrateMuffler Anyone?

    By Philipgonzales3, September 22, 2020
    • 5 replies
    • 6.3k views
    • 
    • Philipgonzales3
    • September 27, 2020

24. Looking to buy. Used SB?

    By Rob Mugs, September 17, 2020
    • 9 replies
    • 800 views
    • 
    • sharkeysierra
    • September 26, 2020

25. Reusing Volant from my 2014

    By Centex14, September 17, 2020
    • 1 reply
    • 443 views
    • 
    • Centex14
    • September 25, 2020

26. 6.2 Muffler Delete Installed

    By BluegrassMotorsport, September 23, 2020
    • 4 replies
    • 11.9k views
    • 
    • BluegrassMotorsport
    • September 25, 2020