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ECU Remapping and Tuning Specialists

ECU Remapping and Tuning Specialists – Performance, Luxury & Daily Vehicles
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ECU Remapping and Tuning Specialists

Unlock your vehicle’s full potential with our ECU remapping and tuning services in Slough. Whether you drive a performance car, luxury vehicle, or everyday daily, our expert team enhances power, torque, fuel efficiency, and throttle response, delivering smoother, more responsive driving.

We specialise in bespoke ECU tuning, performance remaps, and custom software upgrades, all carried out using advanced diagnostic tools and precision techniques. Whether you want extra horsepower for spirited driving or optimised efficiency for daily use, our specialists ensure your car achieves maximum performance without compromising reliability.

Trusted across Slough, Berkshire, London, and nationwide, we provide professional ECU remapping and tuning services tailored to high-performance, luxury, and daily vehicles.

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Why Choose Onyx Performance?

As Seen on Carwow

We’ve been proudly featured on Carwow – a testament to the quality, professionalism, and performance-focused results that set us apart. Watch our feature here to see us in action.

Expertise You Can Trust

With years of experience and deep technical knowledge, our team understands performance vehicles inside and out – from custom remaps to high-end servicing.

Advanced Workshop & Tools

We operate from a state-of-the-art facility in Slough, equipped with cutting-edge diagnostics, dyno testing, and industry-leading tools for accurate, high-quality work.

Tailored Solutions for Every Vehicle

We don’t believe in one-size-fits-all. Every car gets a bespoke approach, ensuring the best results whether it’s a remap, upgrade, or routine service.

Trusted Nationwide

Performance enthusiasts from across the UK come to Onyx because they know they’ll receive premium-quality workmanship, careful attention to detail, and honest advice.

Complete Care, All in One Place

From tuning and servicing to tyres, trackers, and immobilisers – we offer a full suite of services under one roof, all with a strong focus on safety, reliability, and top-tier customer support.
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Enhance Your Vehicle’s Performance with ECU Remapping in Slough

Experience improved power, torque, and driving response with our specialist ECU remapping and tuning services. From performance enhancements to efficiency optimisation, we provide expert advice, safe remaps, and tailored tuning solutions. Book your ECU remap in Slough today.

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Why Choose Onyx Performance for Servicing?

Experts in Performance Cars

We know how to properly care for performance, modified, and luxury vehicles. Our team has the skills and experience to handle specialist requirements confidently.

Correct Service Schedules

Every service follows the exact schedule recommended by your vehicle’s manufacturer, helping maintain performance and protect your warranty.

Quality or OEM Parts

We only use high-quality aftermarket or original manufacturer parts, ensuring long-lasting reliability and top-level performance.

Full Vehicle Inspection

Our service goes beyond just changing oil. We inspect all key systems to keep your car safe, smooth, and road-ready.

Honest Advice, No Surprises

With transparent pricing and expert recommendations, you’ll always know what your car needs – no upselling, no hidden fees.

Fast, Trusted & Tracked

We offer quick turnaround, maintain service records, and send reminders – that’s why customers travel to us from across the UK.
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Frequently Asked Questions

What types of vehicles can you remap?
We remap performance cars, luxury vehicles, supercars, and daily drivers, tailoring ECU software to each vehicle’s capabilities.
What benefits does ECU remapping provide?
ECU tuning improves engine power, torque delivery, throttle response, fuel efficiency, and overall driving dynamics.
Is ECU remapping safe for my car?
Yes — we use advanced diagnostic tools and precise software modifications, ensuring your engine reliability and warranty compliance where applicable.
How long does an ECU remap take?
Most remaps are completed within 1–2 hours, depending on the vehicle and level of customisation required.
Can you provide bespoke tuning for performance or daily driving?

Absolutely — we tailor custom ECU tunes for track, spirited driving, or efficient daily use, optimising performance without compromising drivability.

Is your ECU remapping service available nationwide?
While based in Slough, we provide professional ECU remapping and tuning across Berkshire, London, and the UK, with expert advice and support for all vehicles.
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OUR SERVICES & PRODUCTS ARE FOR OFF-ROAD USE ONLY.

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