lol
"Power can neither be created nor destroyed, only transfered".
yeah thats true for things like sound, heat, light created by mass/energy transfer in a pure physics sort of way. (e.g. two bodies in a vaccum e.g. rocks in space colliding with no friction, no air resistance - just one mass transferring its kinetic energy to the other) but i dont think you can apply that to a car engine!
if an engine develops more power at high revs with a filter its because the filter can flow a greater volume of air whent he engine dammands it, not because youve transferred power at low rpm to high rpm!
wether you loose anything at low rpm because of the filter i have to admit i dont know, but its NOT because of energy transfer.
[Edited by entjm on 16 October 2004 at 3:27pm]