Yeah, I've thought about that EGR emulator. Apparently 06 has few problems than 05 in that regard. I worry more about the swirl flaps...because of the labor involved. But it may be that they won't cause problems for a LONG time.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 158k miles
06 E320 CDI "Rutherford", Black on Tan, 177k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 72k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife