Design Improvements of Acoustic Response of an Automotive Air Intake System Jin Teck Yap, Noor Zafirah Abu Bakar, Nur Fadzilah Shaikh Dawood and Muhammad Adam Rosli MATEC Web Conf., 335 (2021) 03017 Published online: 25 January 2021 DOI: 10.1051/matecconf/202133503017