2014-2019 BMW M3/M4 (F80/F82) COILOVERS S3 Suspension Optional helper springs

Optional helper springs

With our engineering design

Select original equipment sizes of the Pilot Sport 4S utilize the Michelin Connected Tire System in conjunction with Michelin Acoustic Technology and can be identified by the specific Acoustic and Bluetooth logos on the tire's sidewall

polyester cord casing balances trade-offs between ride quality and responsive handling

2014-2019 BMW M3/M4 (F80/F82) COILOVERS S3 Suspension Optional helper springsOverview S3 coilover systems may be "simple' by name but that is as far as it goes. This one way adjustable coilover kit for the 2014 2019 BMW F80 & F82 M3 M4 has been meticulously developed using premium components and assembled by hand in our Southern California facility. Spring rates and valving have been selected based on hours of shock dyno and extensive on and off track testing to ensure optimal vehicle handling performance and reliability. This