For the past 25 years NOS has been pioneering the nitrous industry with the most dominant nitrous product, sales, service, tech support and customer satisfaction. NOS has continued down that path of continuous research and development. Nitrous Oxide Systems (NOS) showed the world how to effectively harness the power of nitrous oxide for automotive use in the 1970&s. Since then, NOS has powered more racers than any other brand of nitrous. When you&re looking to go fast, rely on NOS to deliver the most power per dollar available. From stock engines to race vehicles, NOS has a kit for you.