No it doesn't. The GYTR ECU comes with an all zeroes map, it is most certainly not the FMF map which adds both fuel and ignition. In fact, the stock map is terrible with an uncorked intake and FMF exhaust. I know cuz I've tried it. The all zeroes map pretty much sucks in general. Vlxjim's map is good compromise and great starting point, IMO. It does come with a different map than the stock ECU, but yes, probably not for the 4.1 pipe. I miss read the old site description. The fact that it is all zeros is irrellevant.