I have a 1/8 npt coupler welded into the outside of the uppipe just before the turn towards the TB. I use a long extension with a 10mm socket to install my nozzle. I don't know whether it makes a difference and it is not hidden. So if you're going for the stealth look, mine is definitely not it. Although, the coupler, elbow and uppipe is powdercoated black (the threads were protected so I could thread the nozzle and elbow into position) and the braided feed hose is covered with black split loom.