Bilstein B16 DampTronic 49-145489 provides threaded ride-height adjustment and electronic damping for the listed Porsche 911 (997) GT2 / GT3 applications with PASM. Match the original electronic suspension system and axle ratings before ordering.
Vehicle application
Porsche 911 (997): 3.6 GT3, 3.6 GT2, 3.6 GT2 RS, 3.8 GT3, 3.8 GT3 RS and 4.0 GT3 RS. Manufacturer application span March 2006 to December 2012; 305–456 kW. For the listed cars equipped with PASM.
Ride height and axle limits
- Front lowering: approximately 10-30 mm
- Rear lowering: approximately 10-30 mm
- Maximum front axle rating: 675 kg
- Maximum rear axle rating: 1105 kg
The stated drop is relative to the specified original suspension. Check the axle ratings on the vehicle identification plate.
Damping and springs
This DampTronic kit uses electronically controlled monotube dampers for the specified PASM application. Set the ride height mechanically within the approved range; damping is controlled through the compatible vehicle system.
- Front main spring: 342 lb/in, linear
- Rear main spring: 743 lb/in, linear
- Tender springs: 114 lb/in, front and rear
Fitting conditions
Use this exact DampTronic part number for the listed PASM vehicle applications. Follow the part-specific approval and installation documents, including electrical connections and adjustment limits. Check wheel and tyre clearance and have wheel alignment checked after fitting.
Ordering from GSM Performance
This kit is ordered from our supplier. Contact us for the current lead time. Send your registration or VIN and factory suspension details if you would like help confirming fitment.




