Powerflex Road Series bushes come with a lifetime warranty and are for Road and Fast Road use only. Due to their construction and material they are not designed for Track / Motorsport use, the Black Series bushes are harder and more durable and are for this purpose. Road Series bushes come in a variety of colours, which are matched to their Shore Rating (hardness). Being a product for road cars they are softer and offer better vibration properties as a result, something you are not concerned about in a focused track or race car. Please see the bottom of this description for Powerflex's full warranty information.\n\nVehicle Fitment Information (Compatibility):\nWe include vehicle fitment Compatibility on many of our Powerflex listings but please note this information is to be used as a guide only. Our listings contain additional fitment notes and vehicle specific information in them, so please read all the information in the description before making a purchase. If you have any furthe.