BMW 428i Coilover Suspension Kit - Dinan - Dinan Performance - 2014–2021. A Dinan-engineered suspension upgrade for the F32 428i/430i (RWD) that sharpens handling and lowers ride height while maintaining daily comfort.

Built around Dinan’s CNC-wound chrome-silicon Performance Spring Set, this kit reduces body roll and brake dive/squat for a more controlled, confidence-inspiring chassis. On F32 428i/430i RWD, the drop is about 5/8 in front and 3/4 in rear with spring rates up 41% front and 29% rear. For the intended ride height, travel, and balance, Dinan recommends installing the matching Ride Quality and Handling Kit. Not compatible with xDrive, convertible, or Gran Coupe models.

Features

• Fitment: 2014–2021 BMW F32 428i/430i (RWD)
• Lowering: approx 5/8 in front, 3/4 in rear (F32 RWD)
• Spring stiffness: +41% front, +29% rear (F32 RWD)
• CNC-wound high-tensile chrome-silicon, shot-peened, preset to resist sag
• Compatible with conventional and factory electronic shocks
• Recommended with Dinan Ride Quality and Handling Kit

Have questions or need a tailored consult? Call our Austin, Texas team at 512-982-9393 (TX) or our Los Angeles, California area shop at 562-981-6800 (CA). We offer professional installation and customization at both locations.

Considering multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

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