[SGM335i]

Does the bad vanos intake solenoid have any effect on power output? i heard it has to do with torque and oil pressure? Correct me if i'm wrong.

[The1ontop]

Yeah a bad/dirty vanos would definitely cause your symptoms get them out clean or replace but they would be relevant in loss of boost

[C.Pop]

Originally Posted by ericfox11

This comment does make a lot of sense...do others agree with this? If this is the case, it might be that getting the 5" (closer to stock size) inter coolers are the best in between for better performance while not adding additional lag. I hate lag, so I wouldn't want a bigger one if this comment is true.

No, not with a 5" fmic, not with your car, just no. Nope. Just because you can theorize it doesn't mean it's real.

You probably have a boost leak or the car just needs some time to adapt. There should never be any power loss with an intercooler upgrade.