Maserati Quattroporte (M139) 2003-2012 - Muller 1-Way Series Coilovers Spring Upgrade:Swift Springs or HyperCo Substitute We now use a high-quality

We now use a high-quality radial Koyo Japan bearing that integrates into the upper spring perch

Our premium chrome silicon springs are available in ratings from 4k-16k

Disassembly and inspection of coilovers

Replacement Fortune Auto end links are available in various sizes depending on vehicle

Maserati Quattroporte (M139) 2003-2012 - Muller 1-Way Series Coilovers Spring Upgrade:Swift Springs or HyperCo Substitute We now use a high-qualityCUSTOM. 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