Contains a new, accurate engine compressor face clearly visible through the kit intakes and new engine rear. The kit part does not capture the look well. Also included are a new turbine face and complete jet exhaust pipe with detailed nozzle. All parts are (3D-Printed) . Designed for all Trumpeter A-4 Skyhawk variants. Can be made to work with the Hasegawa A-4 as well. Master patterns designed by Mike Swinburne. Research assistance by Craig Sargent. (designed to be used with Trumpeter kits)