So, turbo(ct9) intake is 55mm and I don't want to remove AC, because car is in a daily use. Would it be possible to use a silicone joiner to connect efi pipe and turbo? What is the outer diameter(inside diameter is 40mm) of the efi pipe's turbo end? Second option is mesh, but in a daily use it will suck a lot of dust in or can I use some kind of filter in between two mesh, probably it will restrict the flow too much? Third option is replacing the efi pipe with silicone elbows and aluminium pipes, but is there enough room for this? Fourth, a smaller AC condenser? lol :-P