i am builing a custom kit for my b18b1 and have a garrett t3 with a tubular manifold and am planning to run 2.5 inch intercooler and charge piping as well as 2.5 inch downpipe. its a tight squeeze in that engine bay. im expecting to loose a/c, but does anyone know whether a civic half radiator and fan will be necessary or if i may just need to trim the fan shroud. thanks