Dinan's Performance Spring set for the G30 540i (RWD) provides greater control over body roll by virtue of carefully calibrated spring rates. Additionally, Dinan lowers the 540i by a 7/8" in the front and rear for improved suspension geometry and an even more aggressive stance. The 15% increase in stiffness will reduce the rear suspension compression under acceleration and front suspension compression (or dive) under braking, giving your car a more controlled feel. The Dinan performance springs will also provide a noticeable improvement in grip for high-speed driving situations that will inspire confidence in your car's capabilities. The reduced body roll makes the steering more responsive to driver input and will be noticed at speeds as low as 20 mph up to the top speed of the vehicle.

Features

• Compatible with both conventional and factory electronic shocks
• 15% increase in spring stiffness in front and rear
• Vehicle lowered 7/8" in the front and rear
• Substantial reduction in body roll
• Preset to prevent spring sag