Christopher T. Estopin, Jake A. Algo, Jonathan O. Manas, Christia C. Baltar. Expanded Elbow Pipes and Mufflers: Its Effects on Fuel Consumption of Four Cycle Motorcycle Engine. MSEA [Internet]. 2023Mar.2 [cited 2024May5];71(4):10941-62. Available from: https://www.philstat.org/index.php/MSEA/article/view/2036