I just picked up an 2003 WRX sedan this weekend, and everything was going fine with it until today. I did an intake snorkus delete in the right fender this morning, and took the car out for a drive. It was boosting just fine. I then gave my buddy a ride, I got on it through third, and suddenly lost all boost pressure above 0. We pulled the battery cables, same problem. The car isn't leaking any oil or anything. I've heard that it could be that the stock up pipe cat can deteriorate and jam into the turbo, causing a lack of boost. Also, the car is stock as far as I know except for the intake snorkus delete. Unfortunately, I have work and school for the next three days until midnight, so I cannot have it looked at until Wednesday 4/3. If anyone has any knowledge or has experienced this, please help! Thank you!