Originally posted by Paul
1. Hondata or AEM EMS, it's redundant to do both.
2. Downpipe on an N/A car = downpipe
:nono:
downpipe on N/A = header

h:
Although not actually referred to as an EMS, the hondata is exactly that - it manages the fuel maps, timing maps, MAP sensor voltage, VTEC Xover (where applicable), rev-limiter and various other goodies depending on which system you get.
I refer to the Hondata as an EMS. I don't think it's incorrect, jmo.