Gilly does have an interesting history but where is the sarcasm in his response? Or is asking 'why' now considered to be sarcastic?

My contribution to this is to go to a custom muffler shop and see what they can do for you.

From an environmentalist standpoint, MB hasn't returned to upstream trap oxidizers so if you're looking to have your car be as clean as possible, look to the technologies in the current crop of Diesels.

Sixto
95 S420
87 300SDL
83 300SD