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Our Process

What Happens During a Custom Remap?

20 June 2026 · DC Remapping UK

Wondering what actually happens when you book your car in? Here's our process from start to finish — it's the same for every car, and it's built around protecting your engine.

1. Health check first

Before we touch the software, we check the car over and read the ECU for any faults. If something needs attention first, we'll tell you — we don't tune a car that isn't healthy.

2. Read & back up your original file

We read your ECU and save your original file. That's what makes every map fully reversible — it's kept safe so your car can always go back to standard.

3. Custom map developed on the dyno

Your map is written for your exact car and developed on our in-house 4WD dyno — fuelling, boost, timing and torque all optimised and verified under load. No generic files.

4. Before-and-after printout

We run the car before and after so you can see your real gains on paper, and we make sure everything is running clean.

5. You drive away

Most tunes are done the same day. You leave with more power, a printout, and your original file safely on record. Ready? Get a quote or book online.

Ready When You Are

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Specialist BMW & VAG tuning, dyno-proven in Warrington. Tell us your car and we’ll send your gains and pricing.

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