Swift Springs Spec-R Performance Springs

Designed at the upper limits of OEM shock valving. Track tested for optimum performance while maintaining ride comfort.

• Vehicle: BMW M3 E90/E92 (2008-2013)
• Type: Spec-R
• Front Rate: 5.0 kgf/mm
• Rear Rate: 12.0 kgf/mm
• Front Drop: -1.0″
• Rear Drop: -0.7″
• Part#: 4X903R

Made with Swift proprietary HS5.TW material.