I have a '98 W210 E300TD that I've been driving the past few months. Great car. But it's lacking when compared to my other W210 E320.

I've done my research and apparently 300HP is doable. My question is...where do I source the parts from? I know that I need to change 3 things:

--IP modification
--bigger turbo
--ECU tune

Thing is, I'm in California. I DD my car, so I need her to pass smog...so I can't exactly convert to a mechanical IP.

Now, I understand that dieselmaken in sweden does the 7.5mm elements...which should be sufficient. The bigger turbo...I don't know what to get. Ideally, I'd like it to be bolt on, but not strictly necessary. Does anyone have any suggestions?

ECU tune... this is the biggie. I don't know who does tuning for W210. I see them for the CDI and later blutec cars, but not this one. Who does them?

I understand that adding more power means that the transmission might not cope with it. In that case, what 722.6 transmission from what car will bolt on? W220 S500? W220/W215 S600?

Thanks for any suggestions.