Modifications & Accessories

1,126 topics in this forum

1. 2020 2500HD Duramax 10 Speed Transmission Thermal Bypass?

   By Lightenup, June 7, 2020
   • 3 replies
   • 6.5k views
   • 
   • Steve.S
   • November 24, 2020

2. Lack of aftermarket products

   By doozer78, November 16, 2020
   • 6 replies
   • 2.1k views
   • 
   • Colossus
   • November 21, 2020

3. Winter cover

   By mx_master, October 10, 2020
   • 2 replies
   • 7.4k views
   • 
   • mx_master
   • November 15, 2020

4. 245/75r17 on 2020 WT are just too small

   By Viktor Stolyarchuk, November 11, 2020
   • 8 replies
   • 2.4k views
   • 
   • CT Chevy Connoisseur
   • November 13, 2020

5. Has anyone added a sub box yet?

   By swaptrex14, November 12, 2020
   • 0 replies
   • 1k views
   • 
   • swaptrex14
   • November 12, 2020

6. Sprint Booster - Chevrolet 2500 HD Install

   By jmandish, November 10, 2020
   • 0 replies
   • 1.2k views
   • 
   • jmandish
   • November 10, 2020

7. Stealth performance mods 1 2

   By Pauliedd220, October 24, 2020
   • 16 replies
   • 5.9k views
   • 
   • sdelam
   • November 9, 2020

8. Running board fit question

   By Culled, November 4, 2020
   • 3 replies
   • 8k views
   • 
   • JT19HC
   • November 8, 2020

9. Need level kit advice!!!

   By gunner25, October 29, 2020
   • 8 replies
   • 23k views
   • 
   • EJCarter
   • November 6, 2020

10. LED headlights on lower trims

    By Dunn, May 3, 2020
    • 2 replies
    • 2.6k views
    • 
    • Dunn
    • November 4, 2020

11. Has anyone opened up the headlights yet?

    By swaptrex14, November 2, 2020
    • 3 replies
    • 1.3k views
    • 
    • wade_660
    • November 3, 2020

12. Has anyone ran a 20x10 negative offset on stock suspension

    By Arkangel, November 2, 2020
    • 2 replies
    • 2.9k views
    • 
    • WACKEM_G
    • November 3, 2020

13. AT4 HD LICENSE PLATE FRAMES

    By John Hoffner Jr, November 2, 2020
    • 1 reply
    • 2k views
    • 
    • motorsswin
    • November 2, 2020

14. Cold Air Intake

    By Bopper21, October 17, 2019
    • 10 replies
    • 13.3k views
    • 
    • nomadicdogg
    • November 1, 2020

15. Front grille removal

    By doozer78, October 31, 2020
    • 6 replies
    • 36.2k views
    • 
    • doozer78
    • November 1, 2020

16. Tonneau Covers - 6'9" Standard Bed 1 2 3 4 5

    By ApertureX, August 12, 2019
    • 68 replies
    • 19.5k views
    • 
    • tbully
    • October 30, 2020

17. Aftermarket muffler

    By Slabhunter, October 18, 2020
    • 2 replies
    • 1.9k views
    • 
    • ApertureX
    • October 29, 2020

18. GM Trailer camera calibration

    By Charles Ha11, October 28, 2020
    • 4 replies
    • 2.9k views
    • 
    • Charles Ha11
    • October 29, 2020

19. Lift/Wheels/Tires

    By Tony O'Hair, October 22, 2020
    • 2 replies
    • 1.8k views
    • 
    • kylant
    • October 29, 2020

20. Help! Did the dealer send me the wrong rear fender well liners?!

    By swaptrex14, October 24, 2020
    • 10 replies
    • 4.2k views
    • 
    • markwoodlief
    • October 29, 2020

21. 2500HD Fuel Filler

    By spm1us, September 21, 2020
    • 5 replies
    • 2k views
    • 
    • spm1us
    • October 28, 2020

22. Zone 3" lift kit

    By CalN, October 23, 2020
    • 4 replies
    • 3.5k views
    • 
    • cNate
    • October 27, 2020

23. Leveling Kit Question

    By tbully, October 22, 2020
    • 5 replies
    • 5.7k views
    • 
    • gSwift
    • October 26, 2020

24. Summit white grill

    By Metalmainiac1158, October 26, 2020
    • 5 replies
    • 8.8k views
    • 
    • motorsswin
    • October 26, 2020

25. Who's running a Sled Deck & What length?

    By edgexcsp, September 13, 2020
    • 9 replies
    • 13.2k views
    • 
    • Coolade
    • October 26, 2020