Hey there,
Just joined this forum. Also just picked up my first JDM car through William @ JDMConnection. A 1999 Legacy GTB BH5. 5 speed of course. I've only had it for a day and it's amazing. Being my first RHD, manual, boosted car, it's quite the upgrade from my 2003 Civic.
It's a lot of fun to drive, although I have noticed something off. When I put my foot down, in any gear, as the revs get up there the car jerks/stutters a little bit. I don't know what happens after though because I take my foot off when that happens lol. Any ideas as to what it could be?