I found this on Teagus website under WRX Suspension parts, it looked pretty interesting.

The Praxis Adaptive Performance Suspension System is a revolutionary performance air-spring suspension engineered for driving enthusiasts by driving enthusiasts. Its design allows the driver the choice of retaining or enhancing their vehicle's ride and handling characteristics by easily adapting the vehicle's ride height, suspension spring rate and shock absorber damping forces for whatever driving adventures lie ahead.
The Praxis suspension system includes all of the components necessary to allow a vehicle to serve as a daily driver or a racetrack tamer. While the suspension components weigh slightly less than the vehicle's original springs and struts, the complete Praxis suspension system evenly distributes under 25 pounds of additional weight around the vehicle.

With the Praxis system, all the driver has to do is select one of three programmed suspension modes (Touring, Sport or Track) with a simple push of a cockpit-mounted button. The Praxis suspension system will raise or lower the vehicle to the correct ride height and assigned spring rate. The driver then fine-tunes the shock absorber damping by turning an adjuster conveniently located at the bottom of each strut unit.



The Touring mode provides ride height, ride characteristics and handling traits that are comparable to the vehicle's original suspension. This mode provides the most comfortable ride qualities for weekday commuting, weekend touring and long vacation trips. This mode also preserves the vehicle's original ground clearance to enhance its mobility when driven through deep snow or on secondary roads.

The Sport mode reduces vehicle ride height by 25 millimeters from the Touring mode ride height and increases spring and shock damping rates to reduce body motions and sharpen steering response. This mode provides a more aggressive appearance along with sportier ride characteristics and more responsive handling traits than the vehicle's original suspension for fun, enthusiastic driving on twisting roads.

The Track mode reduces vehicle ride height by 50 millimeters from the Touring mode ride height, virtually doubles the original spring rate and specifies the firmest shock damping rates to maximize stability and handling response. This ultimate performance mode provides the most aggressive appearance along with performance for autocross and track driving situations. The no-nonsense Track mode is not recommended for street driving or the faint of heart.