We Fixed the Hidden Problem on This 100th Harley…

We found a hidden factory problem in this 100th Anniversary Harley… Now it’s time to fix it and see what actually changes. In this video, I install headers and a ThunderMax system on this 2003 Road King and show you the real-world results — not theory, not hype… just what actually happens when you address the issue the right way. If you watched Part 1, this is the follow-up. If you didn’t… go watch that first, then come back to this one. ⸻ 🔧 What’s in this video: • Header install • ThunderMax setup • First start • Real-world sound, heat, and performance changes ⸻ ⚠️ The truth: There’s a lot of opinions out there… this is just what actually works in the real world. ⸻ ▶️ PART 1 (Watch First): Hidden Factory Problem 👉 [PASTE LINK HERE] ⸻ 🔥 Samson V-Twin Real Harley-Davidson repair, performance, and truth from the shop floor. No guessing. No fluff.