Combine all ingredients in a bowl, then taste and adjust seasoning with salt and pepper as needed.
Refrigerate for at least 10 minutes to allow the flavors to meld together.
Shrimp Tacos:
In a large skillet, heat olive oil over high heat. Sprinkle chili powder and salt on both sides of the shrimp. Arrange the shrimp in a single layer and cook for 2–3 minutes on each side, or until they turn pink and are fully cooked.
Warm the tortillas, then fill each with a portion of shrimp. Top with the mango salsa and serve right away.