i have a few 300zx ECU's rewired to work with the 280zxt harness, you can run the MAF with this setup instead of the flapper door system. i will include all instructions for installation, you will not have to tamper with your original harness, all you need is a ground wire for the MAF and bypass the fuel pump. you can run both 280zxt ecu or the 300z ecu with no problems. easy to switch over. right now im running the 300z ecu and MAF in my 71 turbo 240z, the idle is great and the air flow is so much better. the ecus are from 1984-1988 300z cars, each ECU will cost $100 ea. you can also purchase a MAF for an extra $100. thank you for viewing.