The present invention provides a catalyst and a process for its preparation and its use in cracking heavy feedstocks. At least one duct is provided which can be subjected to a cooling fluid. Free rotation of the tissue contact surface, about the lateral tip, may be provided and tissue vaporization efficiency may be improved by providing a morcellating tool on the tissue contact surface. Bonding of the tip to the shaft is performed by inserting gauge wires into the coolant holes and associated flutes, and positioning brazing material between the first and second end surfaces. The vehicle computing system may receive data from the service center communication system including service instructions in response to the vehicle identification transmission, and present the service instructions on the output device.