1/3
Mercedes X-Class 2.3d X250 4-Matic 2019
Stage 1 RemapLuxury Heavy Pickup For Stage 1 Performace Remap to optimize wastegate duty cycles and boost targets to reduce Turbo Lag and Better Pedal Response.
2 weeks ago
Tamworth
Fully Custom Software · No off-the-shelf Files · Mobile Service Across Midlands
Professional ECU Remapping
Stage 1 Performance TuningGearbox Performance TuningAdBlue SolutionsNOx Sensor SolutionDPF SolutionEGR SolutionFree Diagnostics Before/After
1000+
Remaps done
All makes
Cars & Vans
Mobile
We come to you
Our Services
Every service is carried out using professional-grade equipment and tailored to your specific vehicle.
Why choose 777 Remaps?
We're a specialist remap shop — not a fast-fit tyre centre with a laptop. Every vehicle gets a properly tailored tune, not an off-the-shelf file.
About 777 RemapsTamworth's independent
Tamworth's independent
ECU specialist
We're a dedicated remap and diagnostics shop — not a tyre centre or franchise running generic files. Every job is done by a specialist who understands ECU calibration from the ground up.
We cover Tamworth, Lichfield, Burton upon Trent, Sutton Coldfield, and the wider Midlands as a fully mobile service — coming to your home, workplace, or wherever suits you.
Your original ECU file is always backed up before we touch anything. If you ever want to return to factory settings, we can restore it on the spot — no questions asked.
1000+
Remaps done
5★
Google rated
Mobile
Across Midlands
Fully custom software — every time
Every map is written from scratch for your specific vehicle, engine, and mods. We never load a generic file — your tune is yours alone.
Professional equipment
We use industry-standard OBD hardware — the same tools as specialist tuning shops, not consumer-grade software.
Original file always saved
Your factory map is backed up before any changes. Full stock restoration takes minutes and is included as standard.
We come to you
Fully mobile service across the Midlands. No need to visit a garage — we work at your location.
All makes, all fuels
Cars, Vans, light commercials. Petrol and diesel. Automatic and manual gearboxes. Most OBD-accessible ECUs.
Our Work
Real vehicles, real results — no stock photos.
1/3
Mazda CX5 2.2d SkyActive AWD 2014
EGR Valve Fault Fixed2 weeks ago
1/2
BMW M5 F90 4.4 V8 Bi-Turbo 600Bhp 2018
Stage 1 RemapBeautiful Bmw M5 F90 4.4 V8 Bi-Turbo 2018 Original Software Update with OPF Filter+ Sensors solution for Aftermarket Performance Exhaust.
3 weeks ago
Common Questions
Straight answers to what people ask before booking.
Is ECU remapping legal in the UK?
Stage 1 performance remaps are legal for road use. DPF, AdBlue, and NOx sensor solutions are intended for off-road or track use only — we explain the legal position clearly before any work is carried out.
Will a remap void my manufacturer warranty?
Potentially yes — main dealers can detect ECU software changes during servicing. However, since we always save your original ECU file, it can be fully restored before any dealer visit.
Do I need to tell my insurer?
Yes. Any engine modification must be declared to your insurer. Failure to disclose can invalidate your policy. We recommend contacting your insurer before booking performance tuning.
How long does it take?
Most Stage 1 remaps are completed in 60–90 minutes at your location. DPF, AdBlue, and sensor solution work typically takes 2–3 hours depending on the vehicle.
Is it reversible?
Yes — we always save your factory ECU file before making any changes. We can restore it at any time, and we keep it on file for you.
Do you come to me?
Yes. We're fully mobile across Tamworth, Lichfield, Burton upon Trent, Sutton Coldfield, and the wider Midlands. We work at your home, workplace, or any convenient location.
Ready to unlock your vehicle's potential?
Call or book online — we'll get back to you as soon as possible.