i ordered 10 feet of 4an nitrous hose for my return on the sfmu and recieved it today . they have 4an crimped fittings on them but the problem is the ss hose itself is only like half to 3/4 as thick as my other 4an aeroquip hoses . is this normal ? can i use it or did they send me the wrong hose ?

probably a stupid question, but do you mean the inner diameter or the outer diameter of the hose?
like is the outside the same size but the inside smaller and the walls are just thicker making the hole smaller? <--i know that probably sounds strange, about the best way i could figure out how to say it

the outside diameter is smaller on the nitrous hose like 1/2 the size but it has crimped 4an fittings

disregard, im a dumbass and didn't read the whole post through.

When you order nitrous line, they are sending you teflon line which has a higher strength than the rubber line you have now. the line is fine just use it.

Terry