Bundles include both the Richard Sohn adapter and the install support kit.
Left hand drive install kits are for those vehicles with the steering wheel on the left (port) side of the vehicle. Typical US car--steering wheel on the left for driving on the right side of the road. Also the variant most often found in Europe (Germany, France, Spain, etc). Available with or without the Mazda's evil M. European and Canadian models often have headlight washers. Please let us know if you have them when ordering.
Right hand drive install kits are for those vehicles with the steering wheel on the right (starboard) side of the vehicle. Typical UK/AUS/NZ vehicle. Most RHD vehicles are equipped with headlight washers, a set-up that includes a secondary washer fluid pump and level sensor. Please let us know if you have them when ordering. Available with or without the Mazda's evil M.