Okay so recently I redid the boost gauge cuz I had to go to the dealer for the maintance on my 07 wrx. Later on that week I had put the boost gauge back in and now my gauge is telling me I am running at 4.5 psi thru all the gears. Is it a probelm with my car or is something wrong with my gauge I really dont see a power drop at all but I am just confused cuz I was planning on having my car tuned soon and now I dont know whats wrong with it