Mix vinegar, oil, sugar, and chili powder. Mix well.Add the shrimp and marinate for an hour in the fridge.
Step 2: Grill shrimp
Heat a stovetop grill or BBQ over high heat and grill shrimp until they turn pink on one side, turn and repeat.If you wish you can cut the shrimps into small pieces, or serve them whole.
Step 3: Mix dressing
Mix sugar, vinegar, oil, and salt to taste. Set aside.
Step 4: Serve
Mix mango, lettuce, and tomatoes. Arrange the shrimp on top.Accompany the salad with dressing.
Cook's notes
If you like your mangos crunchier, pick the ones that aren't ripe yet. If you use ripe mangos don't use the sugar, the mangos are sweet enough.