They're actually the same. The Injen fix is just a MAF Customizer that is pre-tuned to solve the Injen problems and provide some performance gain as well. Whether you ordered it, or ordered the MAFci system, the wiring for the MAF Customizer would be the same.I know you have the tuneable CPE MAF on your website but I just want the Injen fix. I have not the time nor knowledge to do the other option otherwise I would. From the looks of the Injen fix it's simply plug and play correct?