Does changing or upgrading your Maf require a retune?

[ANVIL]

Trying out an online/email map just wondering what maf I should tell them if it matters?

[Yellow4g63]

upgrading the maf yes, bigger injectors yes, exhaust not so much.

[R32ONP]

yes for the afm as the upgraded afm (z32 or why) has a larger scale in which is can read the air flow and because of that it sends different signals to the ecu at these air flows. so re tune is a must as for injectors as the duty cycle etc will have to change with larger cc injectors

[Carl H]

gonna rock a z32 ecu or an rb20 ecu?

[ANVIL]

i have a power fc, and i have the stock MAF on the car and a spare z32 maf

[Carl H]

gotya, the pfc generally does a good job rescaling for the maf...