EDIT: Update and video on Page 3 post #44.
I just flashed XPT stage 2 to my WRX today and am very impressed! So here's my story/experience/write-up so far:
My car/engine mods:
02 WRX 5spd. 22,000 miles on motor.
Turboxs cat-less cast iron up-pipe
Tsudo cat-less downpipe
Apexi N1 cat-back
OEM STI I/C, w/ spiltter, PnP elbows, samco hoses,and 1in tilt.
Pnp throttle body
PnP stock header w/ straight through cross-over pipe.
Intake siliencer removal w/ K+N air filter and veloicty stack.
I received my Tactrix cable a few days ago, and was waiting for the XPT stage 2 map come in my e-mail. It came in late thursday night and I didn't open it and read the instructions until the next day.
I hooked up my tactrix cable to my USB port and the computer automaticy downloaded the necesary drivers. After that, I took my laptop out to my car. I connected the green male/female test connectors together. For those of you that don't know exactly where the are, they are behind the fuse pannel on the lower dash cover.(where your shins are when you in the drivers seat). You don't have to remove that cover to acess the test plugs and re-flash connector. I then opened up ECUFLASH on my laptop, connected my DLC connector to my car. I turned on my ing. key and selected the "read from ecu" icon. There was a small box that promped some instuctions to me. I download my cars stock map in less then 1min. I saved it to my computer. Next I opened up my XPT stage2 map fromhttp://www.osecuroms.org/. Selected "test write to ecu" icon, waited for it to test write, sucesful. Now to actually flash the stage 2 map. Now is when you go to the other connector behind your fuse box in plug in a 2 pin jumper connector( I have an 02, for 04/05 it a 4 or 5 pin jumper) With the stage 2 map highlighted I seclected "write to ecu" icon. It took about 90 seconds.
My laptop computer is brand new, and it pretty good with all the latest goodies. So I'm sure thats why mine copied/flashed so quickly. So for older and slower compurers I would expect a longer wait, but no big deal. From what I remember about the system requirements, you don't need very much to run the necessary programs. I think that you need at least win 98, and a semi-new usb driver. Sorry no mac's.
When it was done re-programing I disconnected the negative battery cable and reset my ECU. This is a necessary step, it say so in the insturctions. After I reconnect everything, I go back under my dash and remove both test/flash connectors. This is also a MUST. I started my car and let it idle for about 10 min.
Now time for the test drive. As soon as I turned out of my street and put the gas 1/3 of the way down in second gear I noticed 10-11 psi of boost by 3,000rpms. A solid 10-11psi, not a slight boost spike, solid.(very nice) Since it has gotten pretty cold here in SE PA, I have been having boost spikeing issues. My car previously had the 3/16 mod installed in it, I removed that and replaced the vacume lines with stock coupler. Yes my compressor housing vac line has the brass pill in it. After that there was no difference in my boost spike/flux, and sometimes it was very bad, about 8psi difference. It got better after my ecu learned the new duty cycle. But enough of that. I then adjusted my wastgate arm out(so the wastegate opens a bit earlier) a few turns. I could now here that wastegate flutter that I had before. The boost was better with it spiking/fluxing, but the flutter was too loud and it wasn't holding target boost when it settled down. I turned it back in 1 turn and the flutter was still slightly there. Boost spooled quick and, only spiked about 1-2psi and held a solid 15psi up to about 6500 rpms. So I was happy about that. In the instructions it tells you to adjust you wastegate arm in 2-3 turns to achieve peak boost, which is 16.8 +/-. I get peak boost at a high 17psi.
But back to the test drive with stage 2. Here's how the gears/boost works at WOT for me:
1st gear 15psi very early. I don't have exact RPM's, being that I have to watch the roads, but I would say before 3000 RPMs, holding very solid slightly tappering down at 6000 RPMs
2nd gear 15-16 psi holds to redline/ spools full boost at 2700 rpms
3rd gear 17psi holds to redline/ spools full boost 2700rpms
4th gear 17-18psi holds to redline/
5th gear 18-19psi holds untill???? only went up to about 110 mph today, I'm sure it will hold to redline. full boost at 2800rpm
Now even with crusing in 5th on the highway and wanting to pass somebody when your going 65mph I would normally want to down shift to 4th. Now I can just go 3/4 throttle for pretty fast spool up and pass no problem. Driving around town is a ton better and you are always just a split second from good, solid, slightly higher, boost at any speed/gear. Since I have flashed, my boost has spooled faster across the board, now matter what speed or gear. I have no spiking issues and it holds rock solid. It's 20 degrees outside and that always makes most people cars to spike a bit. Eventhough they tell you to adjust your wastegate arm IN and I adjusted OUT, I still hit target boost and slightly higher. Like I said it's cold outside, so it might have to be adjusted in for the summer. For the 90 bucks for the cable and the 25 dollars for the XPT map, and the free software for copying, editing, and flashing. This has been the best mod for my car and I highly recomend it for other people out there that want some good cheap EM, have boost spike problems, or other needs that also want to be a part of the process. Don't get me wrong you definatly have to study up on this stuff to learn how to do it properly and safe. For those of you who don't mind driving far and paying a ton of cash to have their car tuned, and then never change/touch anhything because they don't feel like learning some new, cool, and exciting stuff about your car, that's fine.
I am very impressed with the inital results. Like I said before the overall performance is so much better. It rained/snow/sleeted out tonight so I didn't get to do very much driving. I can't log right now, but from other people that have had this map their logs have been very good, for not even adjusting any settings for this map. I will be logging when the road conditions get better. I will also be taking an in-cabin video of my gauges like the speed-o and the boost guage so you can get a slight feel for the performancr of the map.
Sorry for the super long write-up but I am so excited/pleased with this I wanted to share with all. I will update from time to time with a few vids and logs.