Economy Remapping in Loughborough

We will not put a number on it before seeing the car, and any figure quoted blind is a guess dressed up as a fact. What we will do is give you a realistic expectation for your specific vehicle once we know the engine, the weekly mileage and the roads. The published percentages you see elsewhere tend to be a best case on the most suitable engine.

That depends entirely on how long you are keeping it and how far you drive. Value is not really the point. Mileage and ownership window are. If you are covering serious miles and keeping the car for years, the sum can work on a cheap car. If either of those is small, it will not.

Possibly not, and that is worth checking first. Poor economy on a high mileage engine is frequently a fault rather than a calibration issue: injectors that are no longer atomising cleanly, a stuck EGR, a boost leak, a lazy sensor, a partly blocked filter, or a service that is overdue. Any of those will cost you more than a map will return.

No. It moves the usable torque lower in the rev range so you need less of that range to do the same work. Most people find the car easier to drive afterwards, because it pulls from lower down and asks for fewer gear changes. You have as much available as before, you simply reach it sooner.

Honestly, not much. A cold engine is inefficient for the first few miles regardless of what the software says, and a journey pattern dominated by short cold running is dominated by that rather than by the map. If that is your week, the map is worth buying for how the car drives rather than for a fuel figure.

That is much better ground for it. Sustained running at a steady speed is exactly where a lower engine speed in a higher gear repeats itself mile after mile, and a fixed route means the saving is consistent rather than depending on what you happened to do that week. The more repetitive the journey, the better the case.

It is a straight function of your mileage and the fuel price, so it varies enormously. Somebody doing a fixed daily commute is in a completely different position from somebody doing a few thousand miles a year. Give us the weekly mileage and we will talk through the real arithmetic rather than a marketing version of it.

Partly. Every road map is a compromise and we bias that compromise towards whichever matters more to you, so be honest about which it is. Asking for both usually means getting a file that is slightly disappointing at both, and we would rather write something that does one job properly.

An economy focused map is generally less demanding on an engine than a performance one, which helps. It still requires the engine to be healthy, because anything that asks the engine to deliver cleanly at lower revs depends on it being able to. We check before writing, and if it is not a sensible candidate we say so.

Yes. It is a modification regardless of whether the intent is fuel saving or extra power, and it should be declared in the same way any other change to the vehicle would be. An undeclared modification can affect a claim, and that is a vastly larger sum than anything involved here. In practice most insurers deal with it without much fuss once they have been told.

Yes. Your original calibration is read and saved before anything at all is written, so the car can be returned to exactly the software it came with, at any point afterwards. There is nothing irreversible about the work. People most often want it back to standard when they are selling the car, or when a garage would rather see it on the factory file before investigating something unrelated.

Then you have saved yourself the money and learned something about your car, which is a perfectly good outcome from a phone call. It happens often enough in Loughborough that it is worth saying up front. We would rather turn down a booking than take one that will not do what you are hoping for.