just thought id put my 2 cents in ive got a r33 gtst 4 door and ive got the same problems as all u guys my car got high flow turbo, exhaust, fmic, and bosch fuel pump. Its still running stock ecu and stock injectors ive just replaced the spark plugs ive also got bigger injectors to go in it im wondering if i put in the bigger injectors am i able to get the stock ecu tuned or do i have to get an aftermarket 1