Nitrous Oxide Bottle
What Is a Nitrous Oxide Bottle?
A nitrous oxide bottle is the pressurized storage vessel at the heart of any nitrous oxide injection system. It stores liquefied nitrous oxide under high pressure, feeding it on demand to the engine's intake charge. When nitrous oxide enters the combustion chamber, it releases extra oxygen at high temperatures — allowing more fuel to burn and generating a significant, instant boost in horsepower. It's one of the most cost-effective ways to add serious performance to a street or race vehicle without a full engine rebuild.
Why the Bottle Matters
Not all nitrous oxide bottles are created equal. The bottle's capacity, construction material, valve design, and finish all directly affect how your system performs. Capacity — typically ranging from small mini-bottles under a pound to large 20 lb. tanks — determines how many passes or pulls you can make before a refill. The bottle valve controls nitrous flow rate: high-flow valves allow more nitrous into the system faster, translating to quicker, harder hits. Most quality bottles are constructed from aluminum alloy and are DOT approved for safe use and transport.
Proper bottle positioning matters too. A bottle mounted at the correct angle ensures the siphon tube draws liquid nitrous (not vapor), keeping delivery consistent. Many builders also use bottle warmers or insulating jackets to maintain optimal pressure, especially in cooler ambient temperatures.
Key Considerations When Shopping for a Nitrous Oxide Bottle
- Capacity: Match bottle size to your intended use — smaller bottles suit motorcycles and limited-use applications, while 10–20 lb. bottles are standard for most car builds.
- Valve Type: Look for high-flow valve designs with adequate siphon tube diameter for your horsepower target.
- Construction: Aluminum bottles with powder-coat or polished finishes resist corrosion; carbon fiber-wrapped options save weight.
- DOT Approval: Always verify the bottle meets DOT (Department of Transportation) standards for safe pressurized gas storage.
- Compatibility: Ensure the bottle's outlet size and thread pattern match your existing nitrous lines and fittings.
Top Nitrous Oxide Bottle Brands
Nitrous Express is a brand built on the philosophy of delivering premium nitrous systems that don't require extensive tuning. Their bottles are available in a variety of sizes and valve flow styles, constructed from aluminum, and offered in white powder-coated or polished finishes. Nitrous Express's proprietary Lightning 500 bottle valve features a large siphon tube, a high-lift stem assembly, and a 45-degree outlet for maximum flow — and it includes dual gauge ports while weighing less than older-style brass valves.
NOS (Nitrous Oxide Systems) is widely recognized as a pioneer in the field. NOS has been at the forefront of performance enhancement technology since the late 1970s, establishing a reputation for producing high-quality, easy-to-install kits that safely boost vehicle performance. NOS bottles are DOT approved, feature a built-in siphon tube, and include an exclusive blow-off venting system for added safety. Their iconic electric blue and gloss black bottles are available in sizes from 2.5 lb. to 20 lb., making them a familiar sight in drag racing pits and performance garages worldwide.