Bilstein B14 PSS Coilover Suspension Kit
You want to lower your car and you want adjustable ride height but you don't want to spend $2,500 on a full coilover system with adjustable damping that you're never going to use. Bilstein B14 PSS is the answer. It's a height-adjustable coilover system without the complexity and cost of adjustable dampers. You're getting monotube gas pressure shocks with fixed damping rates that Bilstein's engineers dialed in for your specific car. The coilover bodies are threaded so you can adjust your ride height from about 30mm to 50mm lower than stock. The springs are progressive-rate coils made from high-strength steel. The whole system's tested under motorsport conditions so it's not going to fall apart the first time you hit a pothole. You're lowering the car, improving handling, and you're not paying for features you don't need.
Here's What You're Actually Getting
Bilstein builds these with monotube shock bodies. That's a single-tube design with the piston, oil, and gas charge all in one housing. Monotube shocks handle heat better than twin-tube shocks because there's more surface area to dissipate heat. If you're driving hard or tracking the car, the shocks don't fade as fast. The damping's fixed. Bilstein's engineers tested these on actual roads and racetracks to dial in the valving for your car. You're not getting adjustable damping but you're also not guessing what damping setting to run. It's set up right from the factory. The coilover bodies are threaded. You're adjusting ride height by threading the spring perch up or down on the shock body. Bilstein says you can lower the car about 30mm to 50mm at the front and rear. That's roughly 1.2 to 2 inches. The actual amount depends on your car's weight distribution and suspension geometry. The adjustment range is about 20mm once you've got the springs installed. So you can fine-tune the height within that 20mm window.
Progressive-Rate Springs and Aluminum Hardware
The springs are progressive-rate coils. That means the spring rate increases as the spring compresses. When you're cruising on smooth roads, the spring's soft and the ride's comfortable. When you hit a bump or you're cornering hard and the suspension compresses, the spring gets stiffer and it resists bottoming out. Progressive springs give you a better ride quality than linear-rate springs on a lowered car. The spring perches are aluminum. Aluminum's lighter than steel and it doesn't rust. Bilstein uses round threads on the shock bodies instead of square threads. Round threads are easier to adjust and they don't bind up as much. The lock nuts are aluminum too. Once you've set your ride height, you tighten the lock nuts to keep the spring perches from moving.
Triple-C-Technology Coating for Corrosion Resistance
Bilstein coats the shock bodies with their Triple-C-Technology finish. That's a multi-layer coating process that protects the steel from rust and corrosion. If you live somewhere with winter and road salt, the coating matters. Cheap coilovers rust out in two or three years. Bilstein shocks last. We've seen B14 kits with 100,000 miles on them that still look good and still work. The coating's not just cosmetic. It's protecting the shock body so the seals don't get damaged from corrosion and start leaking oil.
What You Get
- Bilstein B14 PSS coilover suspension kit
- Monotube gas pressure shocks/struts (front and rear)
- Progressive-rate coil springs (application-specific)
- Threaded shock bodies for ride height adjustment
- Ride height adjustment range: approximately 30-50mm lower than stock
- Fine-tuning range: approximately 20mm once installed
- Aluminum spring perches and lock nuts
- Triple-C-Technology corrosion-resistant coating
- Round threads for easy adjustment
- Application-specific valving (tested under motorsport conditions)
- Made in Germany
Note: This is a fixed-damping coilover system - the shock valving is NOT adjustable. Bilstein engineers pre-set the damping for your specific vehicle. Ride height is adjustable by threading the spring perch up or down on the shock body. Lowering range is approximately 30-50mm (1.2-2 inches) depending on your vehicle. After installation, you have about 20mm of fine-tuning adjustment. Professional installation and alignment are required after install. Don't over-lower the car or you'll have suspension geometry issues, tire rubbing, and poor handling. Set the ride height where you want it, then get a full alignment. The progressive-rate springs provide better ride quality than linear springs on a lowered car but the ride will still be firmer than stock. This is a performance suspension system, not a comfort upgrade.
