I like that design Diahatsu, very clean and professional looking installation. What is the inlet piece exactly, stove or dryer part maybe? I am going to update mine with all 2.5 or 3.0" aluminum piping. I just about wore my fingers to the bone today, sanding for a buddy who owns a shop with exhaust bending equipment and he will do the bends and welding for me. I really like the flexible tubing, but it is already getting trashed.