Claas Celtis 426 Generations
Engine options and ECU hardware change between Claas Celtis 426 generations, which is why the catalogue splits here. Choose the one that matches your car.
Two Claas Celtis 426s from different generations can need completely different files, even if the badge on the back looks identical. That's why we split the 1 generations we cover before getting to engines.
Frequently asked questions
Do all Claas Celtis 426 generations support the same tuning stages?
No — available stages depend on the specific engine in that generation, not the model as a whole. Once you pick your engine, its performance page shows exactly which stages apply.
Does turnaround time differ between Claas Celtis 426 generations?
Not meaningfully — most Claas Celtis 426 files across generations are handled within a few hours of upload, regardless of which ECU the generation uses.
Is my Claas Celtis 426 generation supported for safe remapping?
If it's listed in our catalogue, yes — every engine in every generation shown here has been worked before, with stage limits set to stay within that engine's mechanical margins.
How do I know which Claas Celtis 426 generation I have?
Check your vehicle registration document for the build year, or look up the chassis code — both narrow it down to one of the generations listed here.