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SKU: 48-347754 | UPC: 651860946689
Bilstein 99-05 Porsche 911 C4 996 B16 (PSS10) Front & Rear Performance Suspension System
The Bilstein B16 PSS10 coilover system redefines the driving experience of the 1999–2005 Porsche 911 Carrera 4 (996) AWD models, delivering track-ready precision with everyday compliance through German-engineered monotube dampers and 10-way adjustable valving that outperform factory PASM, aftermarket fixed-rate kits, or rebuilt OE shocks in both rebound and compression control. Featuring inverted front struts and threaded rear bodies for 20–40 mm lowering capability, this system offers independent height adjustment without altering preload, while digressive valving provides linear handling at the limit and plush comfort over imperfect roads. Zinc-plated components and T52 spring steel ensure corrosion resistance and durability in salted winters or coastal environments, making the PSS10 the choice of Porsche clubs and track-day veterans who demand a rebuildable, fully tunable suspension that retains the 996’s legendary balance while adding modern sharpness and stance.
Key Features
- 10-Click Adjustable Damping: Simultaneous rebound & compression tuning for instant track-to-street transitions
- Inverted Monotube Front Struts: 46mm pistons maximize oil volume and cooling, reduce unsprung weight
- Threaded Body Design: Precise ride height adjustment (20–40 mm drop) with no preload compromise
- Digressive Valving: Firm at low speeds for body control, progressive at high speeds for impact absorption
- T52 Spring Steel Coils: Linear-rate springs matched to 996 C4 weight distribution
- Zinc-Plated Corrosion Protection: Salt-spray tested for long-term durability in harsh climates
- Made in Germany: Built and dyno-tested to Porsche tolerances, fully rebuildable
Product Notes
- Fits all 1999–2005 996 Carrera 4 / 4S (AWD) with or without PASM
- Deletes factory PASM electronically, no error codes with included bypass
- Recommended corner balance and alignment after install
- Compatible with factory top mounts or aftermarket camber plates
- Warranty: 2-year limited warranty, extendable with Bilstein service
- Shipping: Freight due to size and spring compression
Installation Notes
- Direct bolt-in using factory top mounts, spring compressor required
- Torque front strut to 55 Nm, rear lower mount to 105 Nm
- Set initial height to 30 mm drop, start damping at click 5 (middle)
- Full alignment mandatory (camber plates recommended for track use)
- Tools required: Spring compressor, torque wrench, 21mm/22mm sockets, est. time: 4-6 hours
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 1999–2005 | Porsche | 911 Carrera 4 (996) | AWD, with/without PASM |
| 2002–2005 | Porsche | 911 Carrera 4S (996) | AWD, all variants |
What's Included in the Purchase
- Pair of front inverted monotube coilovers
- Pair of rear threaded-body coilovers
- T52 linear-rate springs (front & rear)
- Adjustment wrenches and damping tool
- PASM bypass module (if equipped)
- Detailed installation and tuning guide (PDF)
Part Weight: 58 lbs (complete kit) | Shipping Box Dimensions: 32 in × 16 in × 10 in
Why Choose Bilstein B16 PSS10?
- Proven on track and street by 996 owners worldwide with unmatched adjustability
- German-built and fully serviceable for decades of performance
- The gold standard for transforming the 996 C4 driving experience
Frequently Asked Questions
-
Q: Will I get error codes after removing PASM?
A: No, included bypass module eliminates all warnings -
Q: How low can I safely go?
A: 20–40 mm drop maintains fender clearance and suspension travel on street tires -
Q: Are camber plates required?
A: Recommended for aggressive track alignment, not required for street
Shipping & Handling
- Method: Ground freight, lift gate available
- Availability: In stock
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