D-Jetro for PowerFC will eliminate the MAFS, replacing it with a MAP sensor and intake temp sensor, from what I understand. It will also allow you to do closed loop boost control. AEM's MAP setup reportedly makes more power than the MAFS system on S13, but I wouldn't doubt that it's partially due to the tiny stock MAFS. Ditching the MAF sensors also means that you can vent your BOV to atmosphere without penalty.
Last edited by Epstein; 10-20-2005 at 04:15 AM.