I bought 2 of the amazon ones from Auto Parts Prodigy. I haven't pushed the car to WOT yet. I recently had a vanos code (exhaust) with the half CEL light so that is the reason I went and replaced both.
https://www.amazon.com/Engine-Variab...vanos+solenoid
I did the install without having to take the engine cover off. I also don't have oil cooler ones so I had room. Don't drop the hex bolt!