In 2005, Nemechek won a pole at Michigan. The season was highlighted by a feud with Kevin Harvick. After Harvick caused a multi car crash involving Nemechek during practice for the 2005 Daytona 500, Nemechek and Jimmie Johnson were outspoken about their displeasure with Harvick. Later, Nemechek got into a tussle with Harvick during The Nextel Challenge. Nemechek and Harvick had an interaction post-race that nearly came to blows, Nemechek saying, "Kevin thinks he owns this world and he ain't squat."