7 Best 12 Valve Cummins Turbo Upgrade Options 2025
When I first started wrenching on my old 12-valve 5.9L, the stock turbo was the first thing that held me back. That classic P-pump engine is capable of huge power,…
When I first started wrenching on my old 12-valve 5.9L, the stock turbo was the first thing that held me back. That classic P-pump engine is capable of huge power,…