Right now ive got an old turbo xs blow off valve. All it says on it is turbo xs, so im not sure what kind it is. But it looks like the type s to me.

It is currently just connected to my ic piping via a 1.5" coupler. I want to replace this bov with an rfl, and am wondering if it will be the same size as my current turbo xs. Im hoping that I won't need a different flange welding in there. Should I be able to get the rfl far down into the coupler enough to get a clamp on it, without the coupler hitting the horn coming out of the rfl?

This isn't a very good pic, but you can see it mounted here.

You should be okay, there is about 3/4" on the RFL to stuff down there and clamp it on. If not, get a universal mounting flange off of ebay. You can get them in different i/c piping sizes and it has the flange itself for the BOV already welded onto the pipe.

xs power makes your b.o.v., rfl will couple right into place.....