2008 Gmc yukon xl denali horsepower Read Also: 2008 Gmc yukon denali horsepower Horsepower of 2008 gmc yukon xl denali 1999 Gmc yukon denali horsepower 2002 Gmc yukon denali horsepower 2004 Gmc yukon denali horsepower 2006 Gmc yukon denali horsepower