Dinan 19-26 BMW 330i/M340i/M440i xDrive (G20/G22) Performance Spring Set

NOTE: Dinan Performance Spring sets should be purchased and installed with the corresponding Ride Quality and Handling Kit to achieve the advertised ride height performance and ride quality. While not explicitly required, if the matching component is not purchased and installed you will get less than favorable results in the form of poor ride quality and improper handling traits. While we will maintain a full warranty on product defects any claims against the cars improper handling ride quality traits due to not purchasing the corresponding handling kit will not be warranted.

• Vehicle lowered 1" in the front and rear (M340i RWD & xDrive).
• Vehicle lowered 1-1/8" in the front and 5/8" in the rear (M440i xDrive).
• Vehicle lowered 5/8" in the front and 3/4" in the rear (330i xDrive).
• Vehicle lowered 1-1/8" in the front and 3/4" in the rear (330i RWD).
• Compatible with both conventional and factory electronic shocks.
• 15% increase in spring stiffness in front and rear (M340i RWD).
• Negligible change in spring stiffness in front and 10% increase in the rear (M340i xDrive).
• Negligible change in spring stiffness in front and 23% increase in the rear (M440i xDrive).
• 7-95% increase in spring stiffness in front and 34-92% in the rear depending on stock spring configuration (330i).
• Substantial reduction in body roll.
• Preset to prevent spring sag.

Not compatible with the M440i RWD.

This part also goes by the following cross reference.

Cross Reference Part Number: dnnD100-0934