Internal combustion vehicle engine parts, namely, nitrous dispensing systems, fluid injection systems, valves, bottles, gauges, plates, brackets, nozzles, plumbing, jets and lines; kits comprised of valves, bottle, gauges, brackets, plates, nozzles, plumbing and/or jets for injecting nitrous oxide and a fuel mixture into internal combustion engines and parts therefor; valves for injecting nitrous oxide and fuel mixture systems into internal combustion engines and part therefor; nozzles and plates for injecting nitrous oxide and a fuel mixture into internal combustion engines; high pressure lines and plumbing for internal combustion engines; kits comprised of tanks, valves, lines, brackets and fittings for injecting fluids to reduce air and/or fuel temperatures in internal combustion engines and parts therefor; fluid system to reduce air and/or fuel temperatures in internal combustion engines comprised of tanks, valves, lines, brackets and fittings and parts therefor; exhaust manifold for engines; turbochargers for vehicles and parts therefor