What do you think about this MAF kit

[Race94]

http://www.splitsec.com/mafkits/karmonvortex/karmanvortexkit.htm

 

[jayntguru]

Friend of mine had one on a 3S car. Worked well. Only issue is that it was expensive, and you need an AFC or something as well. You can only do lo, med and hi with that controller, we needed an AFC to fine tune things further.

The above kit was $800-ish I believe, throw in $300 for a SAFC and you get to the AEM price almost.