mafless tune fuel eco

[SV8]

ive heard that once you go to a mafless tune that your fuel eco goes up alot it this true cause im trying to decide to go maf or mafless

 

[minux]

My fuel economy never really changed, i guess most change simply because their boot is in their pedal alot more

 

[ringram]

Shouldnt be any difference with a good tune. You might be thinking of an open loop tune, which ignores O2 feedback. This means you can lean out the fueling at idle and low load conditions as well as the usual motorway lean cruise the pcm does on holdens.
IMHO an open loop mafless tune is best for flexibility and removes the 75mm maf restriction.