74mm maf??

[mattp VSII]

hi mace i have a slightly modified vs ecotec with a bored and pollished tb, otr cai, your 25mm plenum spacer and 1.9.1 roller rockers. and was just wondering when getting a 74mm maf sensor what kind of remap is required ie. will i need a tune to get the old girl purring or do your memcal chips cater for all this???????

[MACE]

Hey Matt,

With our 74mm MAF, you'll need a custom tune in real time (not a mail order memcal) to be able to use it properly.

Cheers
Steve