sime 71

hi guys/gals im a newbee in the scooby world ive just bought my first wrx 2 weeks ago and i think it`s GREAT.i need a little bit of advise tho. i was drivin to work the other day when i decided to boot it alittle "sa ya do" when i felt it drop in power a couple of times in the space of seconds it`s done this twice since i`ve had it and im just wondering wot it could be cause i aint gotta clue.any feed back would be great cheers.