Update 7/30/23

Currently at 204k miles and still showing the service light for cat codes. Vanos system seems to be working better with new solenoids. I sometime get very slight stumble but it quickly correct the idle. I get that stumble if I start it up and then shift into reverse/drive right away from cold.

I have ordered the new exhaust gaskets and bolts from manifold to exhaust. I have re used these gaskets when I did my transmission swap and since that day, check engine light would go on and off to the point it stays on now.