Prepare a charcoal grill for direct cooking over medium-high heat.

Preheat the oven to 350ºF.

Grill the kielbasa until the outside starts to brown and grill marks start to show, about 10 minutes. Remove and let cool for about 5 minutes.

While the kielbasa is cooling, combine the KC Masterpiece® sauce with the sriracha in a large mixing bowl. When the kielbasa cools enough to handle, slice it into 1/2-inch pieces and place it in a large baking dish. Pour the sauce over top and turn meat until evenly coated. Place in the oven and cook until everything is heated through, about 15 minutes.

Serve immediately.