those plastic things (aka stock air intake ducts) are meant to be removed. it's impossible to fit the intake properly without removing them.
the core support is supposed to be trimmed with a tool of your choice, to accomodate the circular piping which is wider than the existing holes which are exposed once the above mentioned ducts are removed.
if the holes have been cut too big, there is no choice but to fab up a bracket for each side or wrap the piping in rubber sheeting or EVA foam. Stuff like a camping mat is perfect and cheap. I'm surprised they cut so much out that the pipes are that loose. i hate loose things in my engine bay so when i fitted mine, i cut the holes to leave about a 5mm gap around and i wrapped the pipe with EVA foam to absorb vibrations. You'd want to also make sure there is adequate protection for the a/c lines on the left side as the G3 is known to eat those pipes over time if insufficient protection is installed. All you need is to cable tie a rubber hose over the section of ac line (slice is lengthways and push it on).
cheers
|