Thanks Suginami, I've also looked thru the partsshop, that was the second place I looked after the fastlane catalog. I try to use the sponsors as much as I can and that's why I decided to use MB Autowerks for any work I need done to my E420.

Hello csnow, thanks for your explanation, I now understand exactly why, I'm getting different prices. since I need more than just the cat, I need the entire assembly except from the exhaust