I have a leak in my line from the bottle to the nitrous solenoid but don't know what kind of hose I need to replace it with? The kit is an NX dual nozzle kit. Is the line a 3 an line? Also how long is it 15 ft? 16ft? I wasn't sure and need to order a replacement.

 

thought it was 4an , 16'

 

-4 each end, 16' I think is the norm also. I know Nitrous Outlet makes a 20' for dry applications if you put solenoid up in the very front.

Any of the Vendors can replace the mainline for you. DynoTune, Nitrous Outlet, HSW, or Nitrous Direct, give em a call.

 

-4 on both ends. I think I paid $50 for mine (pricey speed shop and had ex fiance pay for it)

 

Everyone is correct. Its a -4 16ft long.
dave