McCormick XTX remap
Pick the years that match your car. Engine choices and figures change between generations, so the 6 engines we cover are split by shape.
Which XTX do you have?
If you are unsure of the generation, the registration document gives the first registration date.
Best gains on the XTX
Across every generation we hold files for.
- 215E 217hp (160kW) 800Nm All Years 217hp to 266hp, up 156Nm
- 215M 204hp (150kW) 800Nm All Years 204hp to 252hp, up 156Nm
- 185E 198hp (146kW) 700Nm All Years 198hp to 245hp, up 135Nm
- 200E 213hp (157kW) 800Nm All Years 213hp to 260hp, up 156Nm
- 200M 197hp (145kW) 800Nm All Years 197hp to 242hp, up 156Nm
- 185M 173hp (127kW) 700Nm All Years 173hp to 212hp, up 135Nm
What to expect from a XTX remap
The gain comes down to the engine rather than the model, so a XTX with a small turbo diesel and one with a big petrol will read very differently. Pick your years above and then your engine, and the figures on that page are the ones that apply to your car.
We road test before and after, and anything that looks wrong on the initial read gets flagged before we write. If the car has a fault we will tell you rather than map around it.
You can see the whole McCormick range, or ask us about your car.
Book your XTX
We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.