BMW 3 Series (E90/E92) 2006-2011 - Muller 1-Way Series Coilovers Spring Upgrade:Swift Springs or HyperCo Substitute and Global Time Attack

and Global Time Attack

while higher spring rates feel much smoother

locking rings and spring perches

Titanium fasteners for top hats

• Improved Strength

BMW 3 Series (E90/E92) 2006-2011 - Muller 1-Way Series Coilovers Spring Upgrade:Swift Springs or HyperCo Substitute and Global Time AttackCUSTOM. MODULAR. REBUILDABLE. In conjunction with Fortune Auto engineers and Muller Suspension specialists. All Muller Suspension systems are designed with maximum performance and ride quality in mind. Muller suspension systems are truly bespoke in utilizing industry lading machining methods and materials. Designed for High line Vehicles and Exotic Supercars. Amsoil Synthetic Shock Oil Flow Digressive Piston Technology Swift Springs standard on most