Please post your tech questions in the Modifications & Tech section. This section houses our how-to articles. If an article doesn't exist for a certain mod, feel free to post your own how-to with a detailed list of instructions and pictures in this section.
Want to free up some HP? Looking at headers, shift kits, superchargers, etc? Ask your performance related questions here!
Check out the Duramax subforum for all Duramax related questions!
Post any issues you may be having with your engine, transmission, rear differential, etc. and find your solution here. PERFORMANCE RELATED THREADS DON'T BELONG HERE.
Wired up? If you have some sort of A/V modification let's hear about it here. Post your tech questions here as well! Whether it's factory or aftermarket electronics.