In the modern era, which has no doubt proven to be the golden age for diesel performance, it’s common to find 600, 700, or even 800 hp trucks that still go to work every day. At the same time, it’s anything but rare to come across a daily-driven diesel that’s capable of turning out 900 or even 1,000 hp. Fresh back from the Grand Opening Hootenanny at LinCo Diesel Performance—an event that featured dyno competition as well as various live-tuning sessions—we decided to profile a handful of combinations that made impressive power on the rollers.