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Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.

2,728 topics in this forum

  1. True duel sound

    By smakki813,
    • 14 replies
    • 1.6k views

  2. Blackbear tune on a 2014 5.3 / 3.42 to improve towing performance. 1 2

    By VMaxtastic,
    • 20 replies
    • 15.6k views

  3. Cold Air Inductions (First Impression) 1 2 3

    By M1ck3y,
    • 30 replies
    • 5k views

  4. On 3 Performance Turbo Kit?!

    By Meethead,
    • 10 replies
    • 16.6k views

  5. Active Exhaust for GM trucks? (like the Camaro & Corvette has) 1 2

    By 5.3Avalanche,
    • 16 replies
    • 16.8k views

  6. Reviews of 6.2 Maxtow towing 10k

    By avalonandl,
    • 9 replies
    • 3.2k views

  7. GMPP Borla Pipe Size

    By WS6FirebirdTA00,
    • 2 replies
    • 607 views

  8. 8 speed issue 1 2

    By Crimson6.2L,
    • 23 replies
    • 15.2k views

  9. LT and ORY with Stock Exhaust on 6.2

    By J_Mas6.2,
    • 2 replies
    • 957 views

  10. Silverado 2014+ Looking for quietest performance exhaust mod? 1 2 3

    By mattpest,
    • 40 replies
    • 18.9k views

  11. Issues with Diablo Sport Tuner 1 2

    By Bbowen826,
    • 15 replies
    • 16.7k views

  12. Carven Progressive Series kit

    By Piggywutz,
    • 14 replies
    • 7k views

  13. Polyurethane transmission mount?

    By Spastik Monkey,
    • 1 reply
    • 2.3k views

  14. Noise in steering column

    By JakeDenni,
    • 13 replies
    • 1.5k views

  15. Question about V4 mode 1 2 3 4

    By ringbuster,
    • 45 replies
    • 8.4k views

  16. Race fuel smell???

    By jauldusmc,
    • 6 replies
    • 1.1k views

  17. 5.3L Oil Drain Plug & Filter

    By btj_z71,   
    • 13 replies
    • 13k views

  18. Borla Sport exhaust swap to Borla Touring

    By Musgo,
    • 8 replies
    • 4.6k views

  19. transmission maintenance

    By Cheekster96,
    • 1 reply
    • 800 views

  20. Flowmaster makes you make a choice

    By Husker_1911,   
    • 4 replies
    • 1.4k views

  21. 2015 Silverado 5.3 Turbo Questions and Help

    By Silverado_Matt_15,   
    • 1 reply
    • 8.9k views

  22. 2017 Silverado Exhaust Systems Recommendation

    By Emusician101,
    • 3 replies
    • 2.3k views

  23. 2014 Silverado Regear for Towing

    By sammiller86,   
    • 10 replies
    • 7k views

  24. CRC GDI Valve Cleaner spray 1 2 3

    By FL335i,
    • 34 replies
    • 22.7k views

  25. Louder / Aggressive Sound 2015 Silverado

    By joemeigs8,
    • 5 replies
    • 16.7k views
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