Smart Roadster 2003 - 2006 Engines

Below are the 3 engines we cover for the Smart Roadster 2003 - 2006 — each one links to its own performance page with dyno-tested figures.

Not all 3 engines in the Smart Roadster 2003 - 2006 support the same tuning stages — availability depends on the specific hardware, which is exactly what the next page for your chosen engine will show.

Frequently asked questions

Which tuning stages does the Smart Roadster 2003 - 2006 support?

It depends on the specific engine — pick yours below and its performance page will show exactly which stages (Stage 1, and Stage 2 where supported) are available.

How fast can a Smart Roadster 2003 - 2006 file be turned around?

Typically a few hours from upload, tracked live in the member panel once your request is open.

Is ECU remapping safe on the Smart Roadster 2003 - 2006?

Yes, when done within the limits set for that specific engine — which is exactly what our stage options are calibrated to. Every file is worked by someone experienced with that engine family.

How do I identify my exact Smart Roadster 2003 - 2006 engine?

Check the ECU sticker under the hood, or the engine code on your vehicle documents — either one will match against the list below.