Vibrant Oxygen Senrestrictor Fitting W/ Adj Gaflow Insert 11621 Vibrant Oxygen Senrestrictor Fitting W/ Adj Gaflow Insert 11621 Vibrant Oxygen SenRestrictor Fitting w/ Adj GaFlow InsertT304 SM18x1.5 Thread Retail Pack of 1pc MSRP: Was: Now: $32.95 Out of stock. Please Call For Availability