Nitrous Purge Valve Kit-6 AN LineReleases Trapped Air In Feed LinesEnsures Consistent PerformanceIncludes All Required ComponentsBlue Finish NOTE:The lower the ambient temperature, the lower the resultant bottle pressure is leading to a potential fuel rich condition. Although usually not harmful to the engine, loss of optimal power can occur. On the other hand, very high ambient temperatures can lead to leaner burning conditions and loss of optimal performance as well as possible damage to engine components!.