no. apparently he modded it for sequential after installation.

do you know how he wired the two extra fuel injectors?

Well coming out of the MS3 harnessis 3 connectors, two for the stock harness and an extra I assume for adding perepheral controllers and sensors, and out of that extra one there are two wires that wire up into the injector harness, one going to the front two injectors and the other going to the back two. I havent taken the injector harness apart to look exactly how he did it because I wouldnt know if it was right or not at this point anyways. Thats all I know. Does that tell you anything?