...... Ya sorry getting off topic , but when someone says they felt they were getting pushed into there seat more after a plenum spacer then something really needs to be said .
It's the same for uprev/ ecutec reviews , some say they are amazing and completely different car , others say no difference what so ever.
Regardless though I would always have a remap done to complement the mods and to know that the engines running as best as it can .
I say your results are good for what you have had done