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H&R Super Sport Springs BMW F30 328i F32 428i Mazda Grimmspeed includes their 3-Port ElectronicOnly from H&R, Super Sport Springs for the F30 328i F32 428i have all the features of Sport Springs, plus additional lowering which is great for the seasoned enthusiast looking for a little more. These high tech progressive springs for the BMW F30 328i F32 428i retain superior ride comfort. The handling of your vehicle will be improved with a lower center of gravity. H&R Super Sport Springs give your VW the best performance and stance. FITMENT and