Actually, the best thing about going with the SRT ecu is ditching the EGR. My MAF is already effectively disabled via the AEM. The EGR causes a host of issues when going FI not the least of which is a boost leak under certain conditions. Also, the ecu checks for a change in the map sensor when activated which can be problematic as well.
That said, being the first to go this route that I know of, I've mapped out what I believe are the primary differences as well as a plan for each. I built a spreadsheet with the ecu pin outs, highlighted all concerns and double checked the multiple misprints/errors in our service manuals. Next week I'll confirm in person on the car versus manuals and implement while waiting on the SDS. Once I have each issue squared away 100%, I'll share for others that may go this direction in the future.
Major Differences:
1). No EGR on the SRT - Excellent! I also already have my block off plate from where I had it disabled previously
2). The SRT looks to have an extra wire to the alternator
3). The O2 wiring is reversed between the two
4). No MAF on the SRT but it does require an IAT, I'm using the iat in the maf for now but plan on changing the ground location
5). SC clutch on Srt - I'm going to re-route to another device
6). No intake runner control on the SRT ecu, mine is disabled anyway
7). The SRT triggers a relay to switch on the IC pump - I plan on copying this configuration for my existing IC pump to make the ecu happy
8). Different map sensors - already changed out - will publish the numbers later so they are readily available.
9). I'm already running SRT injectors so no difference there!
Other than that, I should be golden! In fact, the complexity and tuning skill required of my entire system has been reduced 100x. The cost? Well, not so much but I don't see why modded SRT-6 power with the smoothest power delivery in the industry will not be available for the n/a at a very reasonable cost. If I can end up ditching the AEM, Awesome! Again, that is considering my gut feeling that the na's higher compression combined with the rotex's lower IATs and better efficiency = an aggressive srt-6 after market tune. Wouldn't that be the shiznit! I know I'm definitely over simplifying a few complicated factors but it sure would be sweet