K40 Chinese eBay Laser 125/160mm Exhaust Ports

As you all know the air exhaust that comes with the K40 is a piece of crap. I am currently assembling a replacement. I am going to use an in hose ventilator and 160mm flexible hose to hopefully get some better performance. Also I will remove the erhaust inside the working area. The new exhaust is split up in two parts. It did not fit on the printing bed with 160mm sized exhaust port. I suggest to print Part1 with the rectangular connection port placed on the printing bed. There should be no supp