Bilstein PSS and PSS10 Systems for E46 3-Series / M3

PSS System
The Bilstein PSS Suspension allows you to adjust your vehicle's ride height without the expense of the fully adjustable damping system.

This system features both coilover and standard monotube gas pressure shocks with performance level valving along with application specific, progressive rate coil springs. The PSS system lets you set your car low and tight for optimum performance or back to a more stock like ride height and handling characteristics. Ride height adjustments can be made on the vehicle without removing the suspension. The solid aluminum spring seat and lock nut allows a selective adjustment of the vehicle's ride height. Spring travel and vehicle body height change, but the spring seat remains pre-loaded throughout the allowable range of adjustment.

PSS 10 System
The Bilstein PSS 9 Suspension provides the ultimate in performance tuning. The fully-adjustable monotube gas shock absorbers offer a selection of nine precise compression and rebound settings, from comfort to competition. The front and rear progressive rate springs allow accurate adjustment of the vehicle ride height and center of gravity for the level of performance you seek.

Now you can enjoy the kind of precise suspension tuning formerly available only on race cars. The PSS 10 system puts you in complete control. Whether it's a weekend of competition or the daily commute, absolute handling and control are just a few twists away.

About Coilover Suspension
A coilover suspension basically gives you a matched lowering spring and shock absorber combination with the added benefit of adjustable ride height and spring rates through a moveable spring perch or perches. Coilovers are to your car's advantage by reducing unsprung mass, increasing suspension travel, and allowing the car to be corner balanced.