Microsoft Flight Simulator X: Steam Edition - 737 Extreme Sound

The 737 Extreme Sound is an accurate sound pack for the Boeing 737 NG series. This sound pack simulates realistic internal and external spool, real world buzzsaw/engine grind sounds, accurate battery and cockpit ambience noises, and immersive ground rolling sounds. Also included is a custom sound gauge that can be added to any aircraft. The sound gauge adds GPWS altitude callouts, a 2D panel for controlling the air conditioning and crew notification sounds, and simulates the TOCWS.