Suitable models are:

AST 1-Way 5100 - BMW 1 series F2X : 

• 114i '11 - present
• 116i '11 - present
• 118i '11 - present
• 125i '12 - present
• 135i '12 - present
• 114d '12 - present
• 116d '11 - present
• 118d '11 - present
• 120d '11 - present
• 125d '12 - present 

AST 1-Way 5100 - BMW 3 series F3X : 

• 316i '12 - present
• 320i '12 - present
• 328i '11 - present
• 335i '11 - present
• 316d '12 - present
• 318d '12 - present
• 320d '11 - present
• 325d '13 - present
• 330d '12 - present
• 335d '13 - present

What is a rebound adjustment?

Rebound controls the rate of extension of your shock absorber, By changing the rebound you can directly change the charecteristics of the vehicle.

• Floating piston design with high pressure nitrogen means no cavitation around the piston.
• 14mm diameter internal shaft.
• 44.5 mm diameter shaft struts, inverted.
• Steel cylinder body shocks, inverted.
• High end, track ready suspension.
• Rebound adjustable (''Singles'').
• Low friction seal.
• Adjuster knobs permanently mounted on the dampers.
• Rubber bushings for ''eye'' shock mounts.
• Optional spherical top mounts.
• Optional DLC Coated shafts.
• Optional DDP piston (double digressive).
• Rebuildable.
• Optional custom valving.

*Actual product may vary, sample image only.