ECU Tuning, Repair & Reprogramming

When the map is developed properly, remapping is one of the most reliable performance upgrades you can make. Manufacturers build significant mechanical headroom into their engines to cope with poor fuel, extreme climates and years of neglect. A good remap uses part of that headroom — not all of it. We log air-fuel ratios, exhaust gas temperatures, boost pressure and knock activity on every development session, and we never run a map that operates outside safe thresholds. If we don't think a car can take the gains you're asking for, we'll tell you.

A remap can affect your warranty on powertrain-related claims if the manufacturer identifies it. In practice this is nuanced: many cars are outside their original warranty when they come to us, and most owners weigh the performance and drivability benefits against the residual warranty risk. If your car is still under warranty, we'll discuss a reversible map option with you — the original file is always saved and can be restored if you need to take the car to a main dealer.

A standard Stage 1 remap on a common platform typically takes 2 to 4 hours, including the diagnostic scan, the flash, and the road test. Stage 2 and custom jobs take longer — anywhere from half a day to several days for a full dyno development programme. You'll have a clear time estimate at booking.

Yes. A remap is a modification, and UK insurers require you to declare all modifications. Failing to do so can void a claim. We recommend you speak to your insurer before booking. Many performance-specialist insurers are remap-friendly and the premium impact is often smaller than people expect.

Yes. We archive your original, unmodified ECU file before flashing anything. If you ever want to return the car to stock — for a main dealer visit, a warranty claim, or a sale — we can restore the original file quickly.

Yes. Transmission calibration is often the missing half of a performance remap. We develop DSG and ZF gearbox maps alongside engine tuning — firmer, faster shifts, raised torque limiters on modified cars, and launch control refinements where supported.

Not if the map is developed properly. We leave significant mechanical headroom untouched and log knock, EGT, air-fuel ratio and boost on every car to verify the calibration is running well inside safe limits. Driven sensibly after the remap, a tuned car lasts the same length of time as a stock one. What shortens engine life is a generic file, no logging, and no understanding of what the hardware can actually take.

Super unleaded (99 RON in the UK — Shell V-Power, Tesco Momentum 99, BP Ultimate) is strongly recommended for petrol cars on Stage 1 and required on Stage 2 and above. Diesel is unaffected. We map to V-Power 99 as the baseline and you'll feel a noticeable difference between 95 and 99 RON after the remap.

We offer rolling road development as part of Stage 2 and custom builds, and as an optional add-on for Stage 1 customers who want verified before/after figures. For most Stage 1 remaps the map is developed via live road logging, which is faster and more representative of real driving conditions — the rolling road is most useful when there's hardware being tuned around.