| Brand | NOS/Nitrous Oxide System |
|---|---|
| Material | Not Available |
| Type | Baseball Cap |
| Country of Origin | China |
| Manufacturer Part Number | 19323NOS |
| UPC | 090127579510 |
Check the listing for details. NOS 19323NOS NOS Logo Hat. Condition: New with tags, Made in China. Listed at 43.99 USD. For nearly thirty years, the application of nitrous oxide on vehicles would be privileged information. It wasn't until the late 1970s when two racers perfected its use. The advent of drag racing's Pro Mod class in the 1980s provided a boost of popularity to NOS.