Study Experimental of Honda Astrea Grand Performance Modification Intake Manifold Using Velocity Stack Dimple 1mm with Variation Diameter Inlate 60, 70, and 80mmGaluh Aji Saputra and Sartono PutroE3S Web of Conf., 517 (2024) 07001DOI: https://doi.org/10.1051/e3sconf/202451707001