PSS9 stands for Performance Suspension System with 9 damping adjustments. The system includes adjustable mono-tube gas shock absorbers with nine precise compression and rebound settings from comfort to competition. Specific progressive springs allow accurate adjustment of vehicle ride height and center of gravity.
The product's simple, yet exceptionally functional design contributes to the extreme durability and long life of Bilstein Shock Absorbers. Bilstein's shock bodies are precision formed through a unique seamless extrusion process. The shock body is then treated with a special paint finish durable enough to withstand gruelling 240-hour salt spray tests. The finished body is mated with a solid, induction-hardened steel chrome plated and polished shaft, machined valving components and highest quality seals. Bilstein products are backed by an aftermarket lifetime warranty.
BILSTEIN PSS10
Bilstein’s monotube shocks absorber design controls heat dissipation and ride control. The PSS10 Coil-Over System is an evolution of the PSS9 system.
The Bilstein PSS10 Coil-Over System offers ten vehicle adjustment settings and includes numbered adjusters at the base of the shock body so you know exactly what setting you are on without counting clicks. Set your vehicle low and tight for optimized performance or revert to a more stock-like ride height and handling characteristics.
Ride height adjustments cane made on the vehicle without removing the suspension. The solid aluminum spring seat and lock nut allow a selective adjustment of the vehicle's ride height. Wrenches to adjust front and rear ride height included!
Bilstein monotube gas pressure shock absorbers are manufactured with the rod pointing down into the strut tube, thereby utilizing the thicker body portion of the shock absorber to dissipate side loads. Advantages include greater stability, better road handling, and accurate steering. This combined with extremely high quality manufacturing and materials, means Bilstein will last approximately four times as long as the Original Equipment.The product's simple, yet exceptionally functional design contributes to the extreme durability and long life of Bilstein Shock Absorbers. Bilstein's shock bodies are precision formed through a unique seamless extrusion process. The shock body is then treated with a special paint finish durable enough to withstand gruelling 240-hour salt spray tests. The finished body is mated with a solid, induction-hardened steel chrome plated and polished shaft, machined valving components and highest quality seals. Bilstein products are backed by an aftermarket lifetime warranty.
EIBACH PRO-STREET COIL-OVER KIT
High Performance, Eibach Tuned Coil-Overs
Optimal Damper Tuning for Aggressive Performance
Rust-Free Stainless Steel Technology
The entire Eibach production process, from development to shipping, is subject to a rigid Quality Control System that is certified by the highest ISO quality standards. Eibach springs have supported innumerable race and championship winners over the last two decades. In series as different as Formula 1 and NASCAR, the winning factor is often chassis setup and tuning. The list of Eibach partners reads like "Who's Who" in Motor Sports: AMG, Audi, BMW, Ferrari, Lamborghini, Porsche, and many, many more.
H&R PREMIUM PERFORMANCE
Rear: 0.75-2.0” (20-50mm)
The H&R Premium Performance Coil-Over Kits comes with black anodized aluminum front struts for strength and beauty. As a result Premium Performance Coil-Over Kits reduce unsprung weight 30-40% compared to stock. H&R coil-over suspension is hand-assembled in Germany under rigid ISO 9001 and TÜV standards. The Premium Performance Coil-Over Kits use a threaded body to allow the spring perch to be moved up or down to fine-tune ride height. These coil-overs feature H&R's exclusive damper technology where each shock is specifically engineered to work smoothly with the progressive springs.
Available from TireRack
H&R STREET PERFORMANCE
Rear: 0.9-2.1” (25-55mm)
H&R originated the coil-over system for the street and continues to lead the market. H&R Street Performance Coil Overs have threaded shocks like bolt so the spring perch can be moved up or down like a bolt. This determines ride height and handeling. Each mono-tube gas shock is specifically engineered to work smoothly with the progressive springs. Black anodized aluminum front struts are used to keep weight down. H&R units are hand-assembled in Germany under rigid ISO 9001 and TÜV standards.
KW VARIANT 1
Rear: -0.9-2.1” (20-55mm)
The KW Variant 1 coil overs make the ride height of the BMW 3 Series infinitely adjustable within German TÜV-tested parameters. The damping rate of the Variant 1 comes pre-set from the KW factory. The coil-overs use KW trademark yellow springs, purple anodized aluminum parts and bump stops with integrated dust protection. Aluminum spring collars adjust the position of the springs upwards or downwards via a trapezoidal thread. The damper housings are available in stainless steel or galvanised steel to maximise durability.
KW VARIANT 2
Rear: -0.9-2.1” (20-55mm)
The BMW 1 Series can be adjusted to the needs of the driver, making the ride variable from comfortable to sporty stiff. Adjustments can be made with the kit installed using a spindle on the end of the piston rod.
Available online from JLevi
Rear: -0.9-2.1” (20-55mm)
The Variant 3 represents state-of-the-art technology for the experienced driver. Separate and independent compression and rebound damping options allow a individual suspension set-up. The 3 individually adjustable components, allow adjustment of the compression of the damper in the low-speed range, while the high speed set-up, so decisive for driving comfort, has been preset by KW engineers.
The unique low-speed pressure adjustment is the decisive feature of the Variant 3. In this absorption area the handling of the vehicle is greatly influenced. An increase in the damping force supports the vehicle even during compression, thereby preventing pitch, roll and notably improving cornering. The compression characteristics are adjusted utilizing a new, patented valve at the lower end of the damper casing.
Continue BMW 3 (E90) Tuning Guide
