Dinan Supplemental Ride Quality & Handling Kit - 2017-2021 BMW 230i/M240i

Lowering springs can let the suspension bottom out hard over big bumps. Dinan's Supplemental Ride Quality & Handling Kit tackles that with progressive bump stops tuned to its springs. Paired with a Dinan spring set, it keeps usable travel on the lowered car and adds mechanical grip in corners.

What you get

• Four bump stops made from OE-quality material for a progressive feel.
• Tuned specifically for Dinan springs, so the pair works as one system.
• Fewer sudden bottoming events, since the spring can use its full compression travel.
• Better cornering grip and ride quality compared with fitting springs alone.

Good to know

• Fit it at the same time as the Dinan springs. As a standalone job, Dinan quotes 6.3 hours of labor, or 7.8 hours on the M235i/M240i. Done alongside the springs, the extra time is minimal.

Brand: Dinan · Part #: D193-2201

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.