Looking underneath the car I noticed that the exhaust is quite different from the other S58s, you can see a small central resonator (red circle), 2 secondary catalysts/OPFs (blue) and 2 primary catalysts (yellow), but the curve of the tubes and the location of the catalysts it totally different from the X3/4M. I'm surprised to see the primary catalysts so far from the manifolds, any thoughts?
This is the X3/4M exhaust
