Ok, here is an easy question. I think...
I have a stock exhaust on my 2002 330i Sport/Prem.
Inside of the right exhaust pipe there is a valve in there with a cable attached to it. It looks like the cable is designed to open/close the valve.
I have never seen it closed.
What would be the purpose of closing off the exhaust? To help the catalytic converter warm up?
Someone please enlighten me.
<span style='color:blue'>Piece (yeah that kind)
2002 330i Titanium Silver w/ Sport-Premium</span>