2010+ Mazdaspeed 3 Motor Mount Inserts Constructed from high durometer polyurethane: Designed to fill in the gaps in the factory rubber motor mounts to limit the movement of the engine and transmission Thrust washer surface on both sides of the mount for superior friction and wear performance Patterned after the OEM Mazda mounts for accurate fitment CorkSport Service and Support: Receive a 2 year warranty, full color installation instructions, all of the needed installation hardware and knowledgeable telephone support