H&R 28802-3 Sport Lowering Springs for 2015-2020 BMW M4 -F83 Cabrio/Convertible

Vehicle Fitment

• 2015-2020 BMW M4 Convertible (F83, S55 3.0L Twin-Turbo I6, RWD)

Fitment Notes

• Fits convertible F83 body only -- not compatible with F82 coupe models
• Includes full spring set for front + rear
• Maintains OEM mounting points; alignment required after install

Features

• Progressive-rate design tuned for convertible chassis dynamics
• Shot-peened and stress-relieved for enhanced durability
• Powder-coated finish to resist corrosion
• Mild drop engineered to preserve ride quality and driving comfort
• Lowered center of gravity improves handling and reduces roll
• Direct-fit design with no cutting or modification
• Retains adequate suspension travel under normal driving loads
• Backed by H&R's quality control and warranty

Specifications

• Part Number: 28802-3
• Kit Type: Sport lowering spring set
• Front Drop: ~1.5 in (≈ 38 mm)
• Rear Drop: ~1.1 in (≈ 28 mm)
• Material: 54SiCr6 high-tensile spring steel
• Finish: Powder coat (typically black)
• Vehicle Platform: BMW M4 Convertible (F83)
• Model Years: 2015 through 2020

Included Components

• 2x Front sport lowering springs
• 2x Rear sport lowering springs
• Installation instructions / roll chart

Product Description

The H&R 28802-3 Sport Lowering Spring Set is engineered specifically for the BMW M4 Convertible (F83, 2015-2020). This kit lowers the vehicle by approximately 1.5 inches in the front and 1.1 inches in the rear, enhancing the stance, reducing body roll, and improving handling dynamics while retaining ride comfort on a convertible chassis.

Made from high-quality 54SiCr6 spring steel, the springs are shot-peened, stress-relieved, and powder-coated to resist fatigue and corrosion. The progressive-rate design ensures predictable behavior across a range of driving conditions and preserves OEM suspension geometry. Installation is direct bolt-in, with no cutting or fabrication required.