Two things; check and make sure the fuel pipe isn't touching or coming incontact the intake tube in any way from torque. With the engine movement, you're going to want have some sort of retaining bracket so the intake tube and filter remain stable and only flex at the silicone joints. I suggest it be nearer the filter and cone assembly. Additionally consider a stiffer lower engine mount bushing or motor mount say from @Boomba Racing.
The prior check is really important. With back and forth movement of the engine, the intake tube may come in contact with the fuel line. Last thing you want to do is damage or rub on it in anyway. This was a known problem with the i30N manufactured in Poland. With the stock intake tube there is an indent specifically formed into the OEM Intake Tube. With your new set up, there isn't. The area in question is about 2/3rd's of the way back on the Intake Pipe. You'll see the fuel line, which is a directly below the Intake Pipe. Please make sure you pay special attention to this area.