In a medium bowl, combine garlic powder, chili powder, salt, ground cumin, paprika, and crushed red pepper. Add chicken to the bowl and toss to coat, rubbing seasonings on both sides of the chicken thighs.
Place chicken on preheated grill and cook for 3-5 minutes on each side.
Turn all but one burner off and brush the chicken thighs with half of the honey. Continue to cook with indirect heat for 5 minutes. Flip and brush chicken with the remaining honey. Cook for 5 more minutes or until chicken is 165 degrees F.