BC Racing BR RA Coilovers for Subaru Impreza WRX STI GRB 2008-2011 F-10-BR-RA bmw-1-series-f2x-m140i-esi9848312 M3 and M4 models suitable

M3 and M4 models suitable for track or fast road use

Four Pro Hoses silicone connectors

Power Increase: 30BHP+

Timing Inlet: 20 - 60

BC Racing BR RA Coilovers for Subaru Impreza WRX STI GRB 2008-2011 F-10-BR-RA bmw-1-series-f2x-m140i-esi9848312 M3 and M4 models suitableSupplied in default spring rates, at the time of writing are: 7 6KG Please note that these may be adjusted by BC based on customer feedback, if you require a specific spring rate, please contact us. LISTING IMAGE IS GENERIC The BR series coilovers use a large 46mm diameter piston in a 53mm diameter damper body to maximise oil capacity. As the damper unit operates the oil contained within heats up. The viscosity of oil changes as its temperature varies