Boil pasta in salt water until fully cooked; drain and let cool. Add vinegar and 2 tbsp of olive oil. Cover and refrigerate. Wisk together in a bowl remaining 4 tbsp of oil, basil, capers, and garlic; set aside.Combine mozzarella, salami, pasta,and olives in large bowl. Drizzle with more oil; about another tbsp. Toss well. Add peppers on top for a garnish.Cover and refrigerate at least 30 minutes before serving.