I have an 05 wrx with an ej22 engine swap. I also have larger injectors an 18 t bloushe turbo. I don't hit boost until like 4000 rpms right now. I feel like it used to be better when I first got it. I'm going to a front mount intercooler in a month or two. I'm wondering if this would help. I also have been considering an engine management system other then my stock reflash but I have no idea what to buy. I haven't had it tuned in 5 or 6 months.