06 Sti Running Lean with New Turbo Inlet (Smoke Tested)

[Vanalex]

OEM inlet had a crack, replaced with silicon aftermarket one. Took intake manifold out cleaned out some blocked metal pipes that had gunk, changed out some old rubber hoses that were like plastic. Smoke tested everything 0 Smoke. CAR has CAI, Catless DP. I have an AP I have ran the car at Stage 0, Stage 1 (Ik its for stock), and also on the stock tune unmarried. In this time I have changed the oil to Valvoline restore and protect 5w-30 Engine has 80K miles. Car Ran Fine at some point before, I never redline and stay about 1K away from it aswell. I have Put a brand new Fuel Filter and Pump and it made 0 Difference. DAM is at 0. Shows Knock and FNL under load but since i am running lean when Im even slightly on throttle I dont push the car at all anymore. I have tried putting shell, Chevron, Arco Gas is not the problem. I am from cali and I have even tried the acn91 tunes. I have inspected and cleaned the front O2 it was clean to begin with. I have visually inspected the car from top to bottom on a lift, checked engine harness connections. I also have an AUTEL to reset lights and check on Realtime values.

I am Open to try anything I am pretty mechanically inclined and have searched the forum but it seems that I find people that have a problem within a certain RPM Range where I am having a problem while giving gas regardless.

Questions/Possible leads
Maybe the Oil I put is too light for the older engine (5w-30)?
what line could be pinched to cause this?
Restrictor Pill has been changed from the Stock to a slightly larger one(Boost is still lower than normal due to low DAM)

In the Past I have taken Every Module that has to do with my AC out including the dash because it didnt work (Fixed)
Front Right Speaker Harness was shorted (Fixed)

This is also my First Post But I plan on posting all my Troubleshooting adventures on here