the piping in front of the e-ram is the stock big rubber elbow so i cant change that, dont think thats the problem anyway.

i thought it was probably robbing power by feel due to draining current that reduced current to spark.
the other thing i think is that regardless of what cfm it can move without resistance, pressurizing air is another matter. i suspect that unless blades overlap like on a true turbocharger it wont work. if you have blades with gaps between to allow air to pass when its not activated, then when it is activated the "backpressure" will still escape.

they have a refund policy if you provide photos to show you have installed it correctly and provide b4 and after dyno at your own expense. for me even if i get the money back of about A$900 for the unit, i am out of pocket another A$50 each way for shipping, and A$250 for import duty, plus another A$100 odd for the dyno...

I should have posted the question here before buying it. On the magna forum they were sceptical but noone had actually tried it. There is very little real technical experience or knowledge there. I guess this is why respectable mags dont advertise it and you never see a decent car in any mag running it. I went for it because as you said, in thoery it should work.