I had bought my WRX not knowing about the performance and how nice it can be tuned to... A rally beast! so as i was over seas i had learned some about what parts change are acute to each stage of tune. So recently i was out playing on some dirt roads, and after running a great ride, i had noticed a knocking. It scared the **** out of me and got it home as easily as possible. so i have a friend who is long time mechanic. He said there was a knock and seems to be coming from the turbo side of the motor and was not knocking faster with more throttle, just about the same rpm the turbo spools. So i assume a bearing has gone bad, so i was going to buy a rebuild kit. So i believe the stock turbo is a TD04L? and i have seen those and TD05's for reasonable prices. Should i go bigger?... Which leads me to my next thought..
I had bought some parts while i was overseas so i plan on putting on a up-pipe and a turbo timer(if needed) new springs, and new front bumper, including putting a cold air on. Now i need to just get my car running to drive so the knock has to be fixed FIRST, which i think it is. But i was thinking if i was going in maybe put a few more parts in. So i been thinking getting the turbo back and new injectors with a new fuel pump. and a friend has a Cobb access port and i cant seem to find maps for the access port to work with what parts. Thank you for any advise as the love for DSM's has inflated to ... ahhhhh wow, well thats best i got, but thank you really