On Jan 17, 4:47*pm, "biofilm" > wrote:
> "twk" > wrote in message
>
> ...
>
> > Just a short story I'd like to share.
>
> > I bought my SCT X3/XF3 tuner from a local shop near where I live. They
> > will update my tuner for life. No problem there. A buddy of mine loved
> > it and did the same thing, bought his from the same local shop.
>
> > The friend of mine then bought a cold air intake from American Muscle
> > and they won't send him a tune for the CAI. He didn't buy the SCT tuner
> > from them, so they won't send him the tune.
>
> hard to see why a tune "needs to know" if there is a cold air intake or not.
>
> after all, the air temp sensor has that nailed, also the maf.

It's the MAF housing that's important... if you chance the size of the
housing or flow characteristics you need to tune for it...