car airbox 3d model

Create a single automotive air filter box cover assembly, not a storage box, not trays, not containers, and not separate random parts. The model must resemble a real Fiat engine air filter box cover with industrial automotive styling. Final overall dimensions: 460 mm length, 430 mm width, 130 mm height. Main shape: * rectangular automotive housing with rounded corners * upper cover with central recessed trapezoidal panel * circular raised center detail * lower shell deeper than the top * front lower area with angled integrated extension * realistic side walls and automotive plastic shell proportions * matte black injection-molded plastic appearance Important: * generate only the main airbox cover and matching lower shell * no extra trays * no extra containers * no floating accessory parts * no household box design * no simple food container shape * no random detached pieces 3D printing requirement: * split only into 2 or 4 logical structural parts * use alignment pins and match