What you could do is stand the pipe on end.
Print it in 2 pieces with a right angle join.

That would print fairly easily.

But to print it on one piece you'd need either a lot of support - or to lay it flat.
If you lay it flat you only have the bottom of the curve in contact with the build plate - now that might work with the right printer and really good adhesion to the build plate. Or you could add a lot of supports.

Any way you look at it - a one piece L-shaped pipe is going to be a pita to print.
A two piece with join - pretty simple.

As has been said - Re-design.