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.
Ordered from supplier. Contact GSM Performance for the current lead time.
Will this fit my car?
This listing is for the Porsche 911 (997). Chassis code, model year, engine and drivetrain all matter, and Bilstein often use different part numbers for cars that look the same, so check your car against the vehicle table in the description. It is for cars with PASM. If anything is unclear, send us your registration or VIN and we will check it before you order.
What can I adjust?
The ride height is adjustable on the threaded body, and Bilstein quote a lowering range of about 10 to 30 mm at the front and 10 to 30 mm at the rear. The damping is electronic and set through the car's own system.
What comes in the kit?
Spring rates are front main 342 lb/in and rear main 743 lb/in (linear).
Is it right for road or track?
It depends how much of your driving is on track. Our guide Fast Road Or Track: Choosing The Damping On A Set Of Coilovers explains what 1-way, 2-way and 3-way adjustment gets you. For the Bilstein range, see Bilstein B12, B14 or B16: Which Suspension Adjustment Do You Need?.
Can I fit it myself?
Our guide Fitting Coilovers At Home Or Having Them Done covers what the job involves. Either way, have the wheel alignment checked after fitting and check wheel and tyre clearance through full steering lock and suspension travel.
How long does it take?
This kit is ordered in from the supplier for your car. Ask us for the current lead time before you book the fitting.
More about this kit.
What lead time is listed for 49-145489?
The catalogue lead time for 49-145489 is: Contact us for current lead time. This is an ordering estimate, not a guaranteed delivery date. Confirm current availability and timing with us before relying on it.
What damping adjustment is listed for 49-145489?
The catalogue lists “Electronic damping via compatible vehicle system” for 49-145489. Use the instructions for the exact kit to identify and set its controls.
What ride-height information is listed for 49-145489?
For 49-145489, the catalogue gives: “Front approximately 10-30 mm / rear approximately 10-30 mm”. Use any front and rear figures with their listed vehicle and fitting conditions. Ask the installer to check the finished clearances and alignment.
Which spring rates are listed for 49-145489?
The catalogue lists: Front main 342 lb/in / rear main 743 lb/in (linear). Keep the front and rear labels and units with the specification. Check the selected application before requesting a different rate; matching spring dimensions and the damper specification also matter.
Bilstein suspension: allow 3 to 5 weeks
Allow 3 to 5 weeks from your order for your Bilstein suspension to reach you.
Need it by a particular date? Write the date in the order comments box at checkout when you order.
