7 After market suspension and engine performance components for land vehicles, namely mufflers, oil coolers, air intercoolers, waste gates, variable vacuum controllers, air valves, retarders, turbo timers, connecting rods, super chargers, fuel sport injectors, sparking apparatus, turbo chargers, surge tanks, pressure switches, turbo boost meters, exhaust temperature meters, intercooler temperature meters, cam shafts, inlet exhaust valves, valve springs; automobile intake systems comprised of intake pipes, air filters, clamps, brackets, and mounts; fuel systems comprised of high volume fuel rails, fuel filters and adjustable fuel pressure regulators; adjustable cam gears for land vehicles