example of fuel economy and mor power
put an better output an lor restriction on it
at low revs 2500 rpm the engine dont rush to expulse the exaust
i see that phenomen in a ford mustang gt so i am in america and its an amerrican muscle
the guy get a better economy after put his hooker headers an hy flo cat
and the mustang become mor economycal than my oldsmobile with 2.5 4cyl
so the performance chip supause to do a little differance but i dont know if the diff o power and economy become a good quality/price value
thats it babe
