NHRA rules require the safety blow off to be routed outside the vehicle. This fitting replaces the existing safety blow off fitting and allows you to attach a blow down tube to the safety blow off...

BLOW OFF 3-STAR PRO-FLO VALVE (3000PSI) FITS ALL NX CHROME AND DF5 VALVES W/ FEMALE THREADS

This nut secures the D-4 or D-6 nipple to Nitrous Express chrome bottle valves.

Wow, how do I start to tell the world why NX is different and better than any other company? Lets start with the NX philosophy: All components must be of the highest quality, no off shore junk; 99%...