Just 3" long out of the box and the boot won't stretch or flex. Maybe you can improvise by heating it up and trying to stretch it, but I haven't encountered that many problems.
Out of the box it is only 3 inches long and the boot does not easily stretch or flex to a longer length. Maybe you can improvise by heating it up and trying to stretch it, but I haven't encountered that many problems.
Used for flexible custom inlet. Worked exactly how I needed it. Couplings like this are hard to find, especially 4" ID ones. Lots of flexibility for most applications. I wouldn't recommend forced induction.