Got a REMAN z32 mafs which I never personally installed. I got it in a pachage deal with some other parts and never installed it on my car. I never tested it but the person I bought it off of said he bought it remanufactured.
$50.00 if anyone is interested.
Keep in mind I never used it on my car. The female end for the clip is different then the regular z32 pigtail clip. Ill take some pics of it and post them later on today to give you a general idea.
nocwage is right. It could work. The z32 mafs are off the 300z, so like the sr20 engines you will need to change the signal. I thnk with the safc II you change the input output to 2in 6out for the sr20det motor but im not to sure for the ka.