Good Morning. Yes! If they have followed the installation instruction it would have been much better.The Pipe connection is for a Hydraulic pipe 28X2,5mm with an inside diameter of 23mm. That is a minimum inside diameter when the cooler is mounted acc instruction, Meaning max 2mtr from the gearbox and in horizontal level, not higher.The right thing to do is to lower the cooler until the Oil piping can be mounted horizontal level and move the cooler as close to the gearbox as possible.Instead of making the piping less diameter than the gearbox is delivered with, they should make the piping bigger. The Oil connection in the cooler is 1 ½ or 2 “. Best regards Jens