My 1984 US ,CA, Spec'd 380SE doesn't have an EGR either. Hope I can ditch the one on the Euro Log too. Smog test sheet where EGR is listed says N/A. I do have the Smog air pump though.
What I'd like to do is pipe the down pipes to a crossover then to a dual in and out high flow cat straight to a Magnaflow (or equivalent) dual in and out muffler..with or without resonators. I would put the bung for the O2 sensor in the junction of the crossover.
John,
Next time use the Russian MB club website to run your VIN.
http://old.mbclub.ru/mb/vin/?lng=eng