Recently my car has been bogging at WOT around 4000 to 5000 rpms. Normal driving and idle is fine but at WOT it almost feels like im hitting a fuel cut its like an instant loss of power. My car isnt too heavily modded ether. I have a JLT short ram intake, pypes o/r x pipe, borla stinger catback, afco dual pass heat exchanger, and my boost is around 12-13lbs and it has been tuned. The spark plugs have been replaced with NGK TR6's gapped at .035. The car is not throwing any engine codes at all. This problem has just started recently and I have no clue what it is so any input would be great.