Heat gas grill on high heat.
Mix together the chili powder, brown sugar, garlic, and salt. Rub chili powder on both sides of each pork chop. Set to the side, then peel the peaches and mango, slice and half.
Place pork on grill over medium heat. Cover grill; cook 6 to 9 minutes, turning once, until pork is no longer pink in center and internal temperature reads at least 145 degrees Fahrenheit. Remove the pork from the grill, set on a plate and tent with foil.
Place the peaches, mango's, pepper, and onion on the grill. Cover nad cook for 5 minutes, turning once. Remove from the grill, and chop plus add 1 tablespoon fresh cilantro, and 1 tablespoon lime juice. Serve pork chops topped with mango peach salsa, or serve salsa on the side.