Hollowing out the cats will set a Cat inefficency code very quickly.
The rear o2 sensors monitor the cats for correct operation.
I dont know if cats for a 97 E420 would work. You may want to look
into it. AMG tends to use standard manifolds on their engines.
The manifolds on a E55 are the exact same as a E430.
However a E50 is a euro car so, all bets are off.
Still, I would look for a E420 in the recycling yards.
Good luck.
DR.D
__________________
Dr.Diesel -
Shop Foreman
Master Guild Mercedes-Benz Technician.
Think the dealer is expensive? Do you know how much it costs to train a dealer tech? Or buy the required MB special tools to have on hand?
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