Well, the AEM is a knock off of the Motech system, which is pretty nice, and it is in fact plug and play, which is also appealing. as far as tunability goes though, the hondata basically uses all the factory program sequences and what not, so it really is a better integrated system, not to mention being a lot less expensive....the Hondata is the way to go if you ask me, but if you have money to toss around, the AEM is nice too.

Later,
Aj