12 Automotive conversion kits comprised of air-intake tubes, pipes, intake manifolds, exhaust hot side piping and tubing, and mounting brackets to make structural changes to an automobile; Diesel engines for land vehicles; Land vehicle parts, namely, transmissions; Land vehicle suspension parts, namely, torsion/sway bars; Land vehicle transmission rebuild kits, sold as a unit; Automotive structural parts, namely, self-sealing tanks for fuel storage, coolant storage, oil storage, and/or water storage; Land vehicle transmissions and replacement parts thereof