Dinan/Bilstein Sport Cup Kit

Product Details

While Dinan opts for custom valved Konis in their S1 package, some prefer pairing Dinan’s lowering springs with Bilstein B8 Performance Plus dampers. You get superior gas pressure handling, monolithic Bilstein build quality, and incredible street compliance all while saving over $800 compared to the full Koni equipped Dinan kit.

By running Bilstein's legendary internal bump stops, you also bypass the need for Dinan’s add on bump stop kit.

Dinan Performance Spring Set

Dinan nailed the spring rates on this kit: firm enough to eliminate slop, yet refined enough for daily driving. They drop your BMW just enough to kill fender gap and lower the center of gravity without ruining your front lip on every driveway.

• Increased spring rates dramatically reduce body roll and lean.

• Eliminates ugly nose dive under hard braking and rear end squat under acceleration.

• Clean 1/4" lowering for an aggressive look without sacrificing suspension travel.

• Shot peened and pre set to guarantee zero spring sag over time.

• Earns 2 points toward your official Dinan trunk badge.

Bilstein B8 Performance Plus Dampers

The standard for lowered BMWs. Bilstein’s inverted mono tube technology delivers precise damping that perfectly complements Dinan's spring rates.

• Damps out harsh road impacts while keeping the chassis planted through high speed sweepers.

• Features Bilstein’s internal bump stops, eliminating the need for Dinan's "Supplementary Ride & Handling" kit.

Prop 65 Warning

Kit Contents

Product Q&A

Lifetime Replacement

Fits These Cars