Exhaust system overview for Smart Fortwo 451 showing manifold, catalytic converter, muffler, and oxygen sensors.

Exploded view of exhaust components including manifold, converter, muffler, and sensor locations.

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See all Powertrain figures for the Fortwo (451), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.