Hi i Just bought a 2002 WRX Wagon. I've only had it for 2 days now and i love it. I have a few questions about it. Does anyone else have a problem with a jerking in the car when you shift at high RPMs from 1st to 2nd gear? Also im looking to do a few upgrades on the car. I was wondering what are the best intakes for the WRX? Also is a blow off valve a good investment? I apreciate anyones helpf Thanks alot.