Just some general information you guys might like to know. Direct from an e-mail from Chiptorque.
REFLASH
More tuneability, can control more tune parameters
Non invasive, no cutting or splicing of wiring
Cheaper than interceptor style tuning
XEDE PROCESSOR
Tuning software provided. Supports Windows (non Vista)
You will need a 9 pin DB9 serial cable or serial to USB convertor cable
Can be tuned faster than Reflash method
The XEDE Processor is an interceptor style Engine Management System. It generates changes in fueling and ignition timing by changing the factory ECU’s load and crank reference input signals to improve the factory tune, specifically to suit an aftermarket exhaust, engine modification or supercharger.
· Support for hall and reluctor type crank and/or cam timing signals
· 0.1 degree accuracy on timing adjustments
· Support for analogue or frequency MAF and MAP/load signals
· 0.1% full scale accuracy on MAF, MAP and TPS adjustments
· Two unique tuning map banks that allow optional setup for dual map operation
· Internal Storage space for up to 12 tuning maps
· Connect your PC to the XEDE Processor using 9 pin DB9 serial cable and free XMap software
· Up to 400 adjustment points per tuning map
· User configurable load and RPM axes, input and output variables, adjustment range, and math function for each tuning map to making tuning fast and accurate.
· Minimum 100rpm breakpoints and 1% load point adjustability
· Two high current outputs for boost control, water spray or auxiliary injector, etc.
· Unit has a fully sealed, rugged and lightweight housing
· User configurable data logging of XEDE signals using XMap (requires PC connection to XEDE during logging)
· Live data display through XMap
· Password protection for map data stored in the XEDE Processor using XMap
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From other piggy back style tuning options I've seen, the 100rpm increments are excellent (Link uses 500rpm inc. and Motec uses 50rpm inc.) and the load points are 1% (Link uses 10%) XEDE seems to be towards the top of the list. I've used Link and Motec as references because these are the most recent options I've viewed in the last week.
For someone like me who already has the flash tune, getting an option to tune the vehicle away from Chiptorque is a benefit. Also note that for those of you that may wish to run water/meth injection, you can do it with the XEDE.
The good news is you can use both Reflash and XEDE Processor together, if tuned properly. They commonly have provided this on Subaru vehicles for people in the same situation as me. Also having a base Reflash to increase say injector scaling (as an example) makes the tuning quicker with XEDE.