Explore the full lineup of LML Duramax parts including CP4 to CP3 conversion kits, DPF delete exhaust systems for off-road use, and upgraded turbochargers. Built for 2011–2016 Silverado and Sierra 2500/3500 HDs, these LML performance upgrades help eliminate common fuel system failures while increasing power and reliability. Tuning options support switch-on-the-fly with popular platforms like EZ Lynk and H&S.