No I don't feel it would help mpgs in any way. I have ran a alum flywheel myself. Yes the rpms do come up a touch faster. BUT You also Lose rpms Fast once you let off the gas.It does not hold the Rpms Between shifts Like a Steel one does.
So this is my 2cent input.
PS mind you mine was not a daily driver at the time I was trying out the Alum flywheel.
God doesn't like ugly.
