6AN 18in Nitrous Line Black

The 6AN 18in Nitrous Line Black from REDHORSE PERFORMANCE is purpose-built for nitrous oxide systems in high-performance engine builds. Whether you're tuning a street car for weekend track duty or assembling a dedicated drag racer, this hose assembly connects your nitrous bottle to the engine's injection manifold with the precision and durability that boost applications demand. The 18-inch length suits mid-engine bays and tight engine compartments where routing flexibility matters, while the 6AN port sizing balances flow capacity with component compatibility across most aftermarket nitrous kits.

REDHORSE PERFORMANCE's black nylon-reinforced hose construction resists the thermal cycling and pressure spikes inherent to cryogenic nitrous delivery. The 6AN designation (roughly 3/8-inch inner diameter) provides sufficient flow for single-stage and progressive nitrous systems without creating bottlenecks that reduce response or scavenge efficiency. The pre-assembled configuration with fitted end fittings eliminates field fabrication mistakes and ensures leak-free connections—critical when containment matters under boost. Black covering protects the hose from UV degradation and abrasion against engine bay heat sources, extending service life through multiple seasons of hard use.

Bracket racers, street performance enthusiasts, and tuners building mild to moderate nitrous systems benefit most from this bolt-on solution. The 18-inch length accommodates most V8 and inline configurations; verify your bottle location and throttle-body or manifold port position before ordering to confirm routing clearance. Installation requires only standard wrenches and basic hose-line familiarity—no specialized press or crimping equipment needed. Pair this line with quality fuel solenoids, a tested tune map, and proper bottle heating to extract consistent power while maintaining component longevity.