fuzzy_scuz, what do you mean by 100% learn mode? do you mean reset the ecu?
Trust33, i didnt add anymore boost. the only change was the cat. it gained an extra ~1psi after the install.
edit: i should add that there is a unichip piggy back on the stock ecu. it was there when i got the car, i havent tuned it, but the car has always, and still does run fine, besides this recent loss of response. all in all, it's not a huge issue, but like many of you here, i'm pretty picky about my car, and i tend to notice every little thing.