the guy mentioned about oem catalyst costing approximately 1800 dollars per piece. Also they said the labor is very intensive because all bolts always break in this area.

 

Oh that's bull$#!%, they certainly do not on these and it's EASY to just heat them before attempting removal.

 

Or just have new bike, nuts and gaskets which are not that expensive. If your in any area in the rust belt where they use salt on the roads exhaust bolts and nuts are not coming off without damaging them. You can hear them up and get them off but most shops will just use a torch to melt them in seconds. Are the cats part of the exhaust manifold on the 430?

 

No they are separate and I'm in the rust belt and these cars and similar (7s, A8s and S) don't rust or fight