NOS Nitrous Bottle Racer Safety Blow-Off Adapter

The NOS Nitrous Bottle Racer Safety Blow-Off Adapter is a passive, maintenance-free safety device engineered to protect nitrous-equipped vehicles and their occupants from the dangers of nitrous bottle over-pressurization. As ambient temperatures rise or heat soak builds, nitrous bottle pressure can climb to hazardous levels — without a reliable pressure relief solution in place, the risk of serious injury or catastrophic bottle failure becomes very real.

Each adapter installs directly at the nitrous bottle valve and incorporates a pre-installed safety disc as its primary pressure relief element. When bottle pressure exceeds a safe threshold, the disc activates and routes nitrous gas through a diffuser cap and vent tube to the vehicle exterior — keeping hazardous gas out of the passenger compartment and delivering instant, passive protection without any driver input required.

Key Features:

• Passive over-pressurization protection — automatically relieves dangerous pressure caused by temperature rise or heat soak, with no active driver intervention required
• Includes a pre-installed safety disc for dependable, ready-to-use pressure relief straight out of the box
• Vents excess nitrous gas externally through a diffuser cap and vent tube, keeping the passenger compartment clear of hazardous gas
• Compatible with NOS Hi-Flo™ and Super Hi-Flo™ nitrous bottle valve generations — multiple configurations available across the product line
• Mandated by both NHRA and IHRA for all sanctioned competition classes in which nitrous oxide is used
• Available in multiple styles and configurations to accommodate different valve applications and build preferences
• Backed by NOS (Nitrous Oxide Systems) — the pioneering nitrous brand trusted by racers and performance enthusiasts across every level of motorsport

Whether you're campaigning a dedicated race car or a street/strip dual-purpose build, the NOS Racer Safety Blow-Off Adapter is a non-negotiable safety upgrade for any nitrous-equipped vehicle. Mandated by both the NHRA and IHRA across all nitrous competition classes, this product line delivers proven engineering protection and full regulatory compliance — giving racers confidence at every event and on every pass.