Dinan Performance Spring Set for BMW 228i / 230i / 428i / 430i 2014-2021

Note: Not compatible with xDrive models, the 228i/230i convertible or the 428i/430i convertible and gran coupe.

The Dinan Performance Spring Set for the F22 228i/230i (RWD) and F32 428i/430i (RWD) delivers a refined blend of aesthetics, improved handling, and ride quality. By carefully calibrating spring rates and lowering the vehicle, this upgrade enhances suspension geometry, reduces body roll, and increases driver confidence at any speed.

Key Features:

• Lowered Ride Height:

  • F22 228i/230i (RWD): Lowered by 1/2 inch in both the front and rear.
  • F32 428i/430i (RWD): Lowered by 5/8 inch in the front and 3/4 inch in the rear.
  • The reduced ride height results in an aggressive stance and better suspension geometry.

• Increased Spring Stiffness:

  • F22 228i/230i: 50% stiffer springs.
  • F32 428i/430i: 41% increase in the front and 29% increase in the rear.
  • This reduces compression under acceleration and braking, providing better stability and control.

• Enhanced Handling:

  • Reduced body roll improves cornering dynamics, steering responsiveness, and overall road feel.
  • Noticeable improvements in grip for high-speed situations, inspiring confidence in the car’s capabilities.

• Durable Construction:

  • CNC-wound using high tensile chrome silicon wire.
  • Shot-peened for stress relief, ensuring long-lasting performance with no sag.

• Versatile Compatibility:

  • Works with both conventional and factory electronic shocks, offering flexibility across setups.

Important Note:

For the best results, Dinan recommends pairing the spring set with the corresponding Ride Quality and Handling Kit. This combination ensures the advertised performance, ride height, and ride quality. While not mandatory, skipping this kit may result in diminished performance or comfort, which will not be covered under warranty.