Abstract: A motor vehicle exhaust line silencer includes: an upper shell (2) having a substantially flat upper end wall (16); and a lower shell (4) having a substantially flat lower end wall (24) parallel to the upper end wall (16), the upper and lower shells (2, 4) delimiting between them an internal volume (6) of the silencer (1). The silencer (1) includes at least an internal partition wall (12) substantially parallel to the upper (16) and lower (24) end walls and arranged in the internal volume (6), the upper (16) and lower (24) end walls having respective reliefs (48, 50, 52) projecting into the internal volume (6) and cooperating to immobilize the internal partition wall (12).

Abstract: An exhaust line connected to the engine of an automobile, includes: a manifold (5) including at least one exhaust gas circulation channel (16) having an exhaust gas outlet (19), the manifold (5) including an outlet flange (13) through which the exhaust gas outlet (19) extends; a downstream apparatus (7) having an exhaust gas inlet (27) connected to the exhaust gas outlet (19) of the manifold (5), the downstream apparatus (7) being rigidly connected to the outlet flange (13) of the manifold (5). The engine (3) includes an engine block and a cylinder head (15), and the exhaust line (1) includes attachment elements (33) for attaching the outlet flange (13) of the manifold (5) directly to the engine block or the cylinder head (15).

Abstract: A motor vehicle exhaust line silencer includes: an upper shell (2) having a substantially flat upper end wall (16); and a lower shell (4) having a substantially flat lower end wall (24) parallel to the upper end wall (16), the upper and lower shells (2, 4) delimiting between them an internal volume (6) of the silencer (1). The silencer (1) includes at least an internal partition wall (12) substantially parallel to the upper (16) and lower (24) end walls and arranged in the internal volume (6), the upper (16) and lower (24) end walls having respective reliefs (48, 50, 52) projecting into the internal volume (6) and cooperating to immobilise the internal partition wall (12).