1. In a bowl, combine water and salt, stirring until salt is dissolved. Add wings and cover. Refrigerate for 30 minutes. Remove wings; discard salt water. Pat wings dry with paper towels; set aside.
2. Preheat grill with a greased grill rack for direct cooking over medium-high heat (375°F). Meanwhile, in a large resealable plastic bag, combine baking powder, onion powder, garlic powder, cayenne pepper, and paprika. Add wings; close bag. Shake bag to evenly coat wings with spice mixture. Grill wings for 25 minutes or until done (165°F), turning once halfway through.
3. For serving sauce, in a small saucepan, combine wing sauce, brown sugar, and vinegar. Cook until combined and heated through. Serve with wings.

Each serving (2 wings) contains: 216 calories, 6 g fat, 1 g saturated fat, 0 g trans fat, 88 mg cholesterol, 636 mg sodium, 5 g carbohydrates, 0 g fiber, 4 g sugar, 33 g protein. ","Daily values: 2% vitamin A, 3% vitamin C, 5% calcium, 8% iron.