Quickboost provides you with one set of Vought F4U-5 exhausts. Of note is the re-sealable packaging that Quickboost uses that makes the parts easy to review and then stuff back into the package securely. There are no supplied instructions; you simply swap out the kit provided five plastic parts with the new Quickboost replacement. The genius here is going from five parts that must be aligned properly with a single piece that provides alignment inherently. Even better, the exhausts are already hollowed out!
Although most paints will adhere to resin alone, I would recommend that you wash the parts to remove any remaining mold release and prime them first. The landing light and venturi tubes will need to be installed with your favorite CA (super glue) or epoxy, as the normal plastic glues or solvents will not react with the resin.