Cut chicken into even sized pieces, put into a zippered bag and add the sprite, chili sauce, fish sauce, garlic, and salt - mix to combine then refrigerate 1-4 hours
Meanwhile combine the lime juice, cilantro and chili sauce - mix well and set aside
Skewer chicken - and if on wooden skewers, please soak in water at least an hour first
Oil and spray grill, heat to medium-high, and put on skewers
Cook until approx 157-160, remove and top with the lime/cilantro chili sauce