The main issue is balancing the reliability, exhaust drone, and emission hardware concerns on the L5P, and it sounds like updated tune files helped resolve many of the early ECM worries. From my experience, keeping an eye on tune revisions and choosing an exhaust setup that controls drone makes a huge difference for a daily-driven truck, and Brozat4’s long-term feedback has been really helpful. If you're already going that route, a full delete kit for L5P Duramax should be planned carefully with a quality tuner and proper monitoring so you avoid headaches and keep the truck running smoothly.
