I have a friend that has a turbo civic. I know this d-series but he has a gsr. Hopefully someone can help. Before the car pulled nice and it started to boost around 4500. Now, its boosting at around 3000-3500...its tuned on uberdata and its running a t3/t4 60 trim. It doesn't seem to have any leaks. What would it cause to spool earlier? it also doesn't pull hard like before when it used to start spooling at 4500. I can't figue it out, any ideas?