The Rotax 532 is a 48 kW (64 hp) two-stroke, two-cylinder, rotary valve engine, liquid-cooled, gear reduction-drive engine that was formerly manufactured by BRP-Rotax GmbH & Co. KG.
[1] The engine's propeller drive is via a Rotax type B or C style gearbox.
The standard engine includes a muffler exhaust system and an intake air filter.
The increased displacement had the effect of flattening out the 532's torque curve and allowed the 582 to produce useful power over a wider rpm range.
[1][2] Reference: Raisner and Bombardier Rotax 532 Operator's Manual[1][2]