Soak the wooden skewers in water for at least 30 minutes.
Preheat the oven to 400 degrees Fahrenheit.
In a large bowl, combine the cubed chicken breasts, oil, garlic powder, salt, and pepper. Stir until all the chicken is coated evenly.
Put the chicken cubes onto the skewers.
Line a baking sheet with parchment paper and place the chicken skewers on the baking sheet.
Cook the chicken for 20-25 minutes or until the internal temperature of chicken is 165 degrees Fahrenheit.
While the chicken is cooking, In a small bowl, add the mayonnaise, sweet chili sauce, and Sriracha. Mix well.
Once chicken is cooked, remove from the oven and drizzle or brush the chicken with the bang bang sauce. Serve immediately.