BMW M340i Suspension Kit - Dinan - Supplemental Ride Quality & Handling Kit - 2019–2026. A purpose-built bumpstop package engineered to complement Dinan performance springs on the M340i, enhancing control and comfort on lowered setups.

This kit replaces factory units with tuned, progressive-rate bumpstops that maximize usable suspension travel on a lowered car. By allowing full compression within the spring, the sudden bottoming out often associated with lowering is mitigated. Carefully calibrated for use with Dinan springs, the stops help optimize the effective spring rate, rewarding drivers with added mechanical grip and confident cornering. Includes four OE-quality bumpstops and direct-fit components for 2019–2026 M340i (RWD and xDrive). Approximate install time if installed by itself: 8.0 hrs (RWD) or 8.4 hrs (xDrive). Labor is negligible when installed with the corresponding Dinan Spring Set.

Features

• Designed for 2019–2026 BMW M340i; pairs with Dinan performance spring sets
• Set of four progressive-rate, OE-quality bumpstops
• Maximizes compression travel on lowered vehicles
• Mitigates harsh bottoming out
• Optimized spring rate for added mechanical grip and cornering when paired with Dinan springs
• Approx. install time: 8.0 hrs (RWD) / 8.4 hrs (xDrive) if installed alone

Have questions or want to book installation? Call our team. We offer install and customization at our Austin, Texas and Los Angeles, California area locations: TX 512-982-9393, CA 562-981-6800.

Thinking about multiple items? Contact us for shipping discounts.

We install on premises at both locations.

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