U.S. Customs and Border Protection (CBP) officers at the Otay Mesa Port of Entry discovered 4.62 pounds of fentanyl powder, 7.71 pounds of black tar heroin, 2.46 pounds of brown powder heroin, and 2.11 pounds of cocaine concealed within the muffler of a vehicle. CBP officers conducting primary operations encountered a 28-year-old man driving a 2003 sedan applying for admission into the United States from Mexico. During the course of the inspection, a CBP K-9 team alerted to the presence of narcotics. CBP officers referred the traveler and the vehicle to secondary inspection for further examination. A non-intrusive inspection was utilized to conduct a full scan of the vehicle. After examination, CBP officers observed irregularities within the muffler located in the undercarriage of the vehicle. CBP officers discovered and extracted 10 packages from the muffler containing fentanyl powder, black tar heroin, brown powder heroin, and cocaine. The narcotics weighed a total of 16.9 pounds.