AST 5200 Series Coilovers | 2012-2015 BMW M3/M4 (RIV-B2102SD) Single Disc Clutches The diffuser features cutouts and

The diffuser features cutouts and mounting points that align with the vehicle’s existing structure

lightweight carbon fiber for durability and weight savings

allowing for better handling and responsiveness on the track or the road

hassle-free upgrade process

The diffuser is easy to install

AST 5200 Series Coilovers | 2012-2015 BMW M3/M4 (RIV-B2102SD) Single Disc Clutches The diffuser features cutouts andAST 5200 Series Coilovers 20122015 BMW M3 M4 5200 Series Coilovers Part #: RIV B2102SD Overview The AST 5200 Series Coilovers are a high performance suspension upgrade designed specifically for the 2012 2015 BMW M3 and M4 models. Engineered for enthusiasts who demand precise handling and exceptional control, these coilovers elevate your vehicle's driving experience whether on the street or the track. With their advanced adjustability features, you'll