Designed to fit the Honda BB6 chassis will work with H and F series motors with auto or manual transmission. Direct Replacement Kit – Kit Includes 3 Mounts & 1 Bracket Driver/Pass. All Hardware is Included – No Notching or Trimming of the Hood Required. Polyurethane bushing – Bushing Stiffness’ Available – Check title for bushing stiffness. The higher the # the stiffer the bushing is for street car we recommend 65A. 65A for up to 350hp, 75A for 500HP, 85A for 650HP – CAD/CAM Designed. Bushing after break in period the vibration will calm down but it will still be stiffer than stock motor mounts. Please keep in mind that this is for Performance motor mount kit. It is strongly recommended that all installs be done by a mechanic or automotive specialist. PLEASE MAKE SURE THIS KIT FITS YOUR VEHICLE BEFORE BOLTING THEM IN PLACE. 1320 Engine Mounts are built for performance driving. Although 1320 bushings are made to absorb engine vibration, you may still notice vibration depending on your engine’s series and HP. 1320 Mounts removes the dampening oil containers harbored by OEM/Stock mounts. By switching to stiffer mounts without the fluid reduces wheel hop and increases driving response.