Nope.
Engine mod + flames is a stand alone and universal mod ( comprising great many files, and many features ) which are needed by a lot of planes. In turn these other mods then avoid the necessity of providing these very same files over and over again, in incompatible variations of the same. It is a simplification process, not "a complex it up" process as U suggest.
The files are common to all mods and should remain that way: all that is needed is that engine mod precedes and loads before the plane mods that need it.
Reminder: do not install engine mod in an "over packaged" fashion.
Also when you eventually update the mod, you then upgrade the "common" features of all your planes in just one go!
This means, by the way, that most of all your planes should now have this flames and smoke feature ( ..see it on their engine startup.. ),
the lot of them should feature it all at once, and immediately !
( If they dont, then engine mod + flames is not properly installed, or you selected the wrong version.)
PS.: ...not quite so alone: in turn 'engine-mod' requires 'CommonUtilities' to work. (...a further small bunch of very basic-common files...).