I think you'll be better getting the Hydra. I looked at the Hydra and the AEM EMS and played with the software for both of them. The features are close on both but the Hydra has more load sites for finer tuning, great support, great base maps, AVCS control (the aem will have it), and is sold exclusively from Phil at Element Tuning who is one of the best (if not best) Subaru tuners in the country. You can buy them from a few other places but all Subaru and Evo Hydras come through Phil. The Hydra is easy to tune if you have tuned before. Any good tuner should not have a problem tuning the hydra even if it is their first time. If the tuner you plan on using hasn't tuned one yet, have them download the software from www.hydra-ems.com and read the tuning guides at www.elementtuing.com . Good luck with everything the swap is pretty easy. I did mine myself over a weekend, although it was a little different since I swapped an EJ257 into a WRX. If you are going with 2.8, it should be based off of an EJ22T and the AVCS on the V7 and USDM STI heads are also different but the Hydra can be setup for the difference between the two.Originally Posted by Jason_STI
Are you going woth a Crawford Block?
Sorry for getting OT. Any results with the GT30 on the EJ257? Does battle ground have a gt35r kit? I plan on going with a GT35R or the Element Tuning GT65 Kit (GT65 = Garret Turbo 65lb compressor) after I get a built block and cams.