It's nearly the same thing. The 034EFI and the EIC that HRC sells do almost exactly the same thing, and the both have the same flaw of no intake tempature correction, however, I heard that the 034EFI will be "moddable" sometime next spring to accomidate an IAT sensor. The 034EFI is pretty easy to tune, if you have a wideband. The TechEdge wideband with the new Matrix Analyzer software makes tuning the 034EFI really easy.