Guides
Straight answers on ECU remapping, from what Stage 1 actually does to what to expect on the day.

Bosch MD1 and MG1 ECUs Can Now Be Unlocked In-House
One specific family of locked ECUs, the Bosch MDG1 units fitted to a lot of 2021-onward vehicles, no longer has to be posted away to be unlocked. Here is what that covers, and what it does not.
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KESS V2, K-TAG & KESS3: How ECU Tuning Tools Have Evolved
Every so often we dig back through old job photos, and this one's a good excuse to talk about how far ECU…
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What Is a Stage 1 Remap? (Explained)
If you've been looking into getting more from your car, "Stage 1 remap" is probably the term you've seen most. It's the…
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OBD vs Bench Remapping: What’s the Difference?
The two ways a map gets onto your ECU, through the diagnostic port, or on the bench. Same result either way.
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Petrol vs Diesel: What to Expect from a Remap
Petrol and diesel engines respond to a remap in different ways. Here's what to expect from each.
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Does Remapping Save Fuel?
It can, and on the right vehicle the difference is worth having. Here is what makes it work.
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Remap vs Tuning Box: Which Is Better?
Two very different ways of getting more from an engine. We used to offer both, and here is why we settled on remapping.
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What Does a Remap Cost?
Prices vary a lot, and the reasons why tell you plenty about what you are actually buying.
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DSG & Gearbox Remapping Explained
Your gearbox has its own computer, and on a tuned car it is often the thing holding you back.
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Stage 1 vs Stage 2 vs Stage 3
The stages describe hardware, not power, and the labels mean less than most people think.
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Do You Need a Rolling Road to Remap a Car?
A dyno measures a car. It does not, by itself, tune one. Here is when it earns its keep.
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