I took off the air can which housed a K&N cone filter yesterday. Since then, the car has ran pretty rough. It's much louder (not the good kind). I'm getting boost, but the car is pretty flat and loud. One thing I did notice which may or may not be relevant is that the stock boost gauge is not reading as close to my Apex boost gauge as before. Namely, I wouldn't get the 3 bars of vacuum when I started to hit boost like I did before. Is there a way I can test the MAS (stock) or see something in the logs? No CELs so far.
Before the air can work, the car was running a bit flat, but it was not loud like this.
Thoughts?
Before the air can work, the car was running a bit flat, but it was not loud like this.
Thoughts?