Dyno Tuning and ECU Remapping Specialists with In-House Rolling Road

Dyno Tuning and ECU Remapping Specialists

Dyno Tuning and ECU Remapping Specialists

Achieve precision performance tuning with our dyno tuning and ECU remapping service in Slough, supported by our in-house rolling road facility. Whether you drive a performance car, luxury vehicle, or a heavily modified engine build, our bespoke tuning ensures maximum power, torque, and drivability while keeping your engine safe and reliable.

With our state-of-the-art in-house 4WD rolling road, we can simulate real-world driving conditions and measure your car’s power, torque, and throttle response with complete accuracy. This allows us to deliver tailor-made ECU calibrations, whether for stock vehicles, stage upgrades, or custom builds.

Based in Slough and Langley, Berkshire, we are trusted by enthusiasts across the UK for our expert ECU remapping, dyno testing, and precision rolling road tuning services.

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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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In-House Dyno Tuning & ECU Remapping in Slough

Take your car’s performance to the next level with our professional dyno tuning and ECU remapping service. Using our in-house rolling road, we provide safe, accurate, and powerful ECU calibrations for all types of vehicles. Book your Slough-based dyno ECU tune today and feel the results instantly.

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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.

Frequently Asked Questions

What is dyno tuning with a rolling road?

It’s the process of measuring your vehicle’s performance on a rolling road to fine-tune the ECU for maximum power and drivability.

Why is an in-house rolling road better?

An in-house rolling road gives us full control, ensuring accurate data, safer tuning, and precision ECU adjustments.

Can both stock and modified cars benefit from dyno tuning?

Yes — dyno tuning works for completely stock vehicles through to fully modified, high-performance builds.

How much power gain can I expect from dyno ECU remapping?

This depends on your car and modifications, but gains include improved throttle response, stronger torque, and smoother power delivery.

How long does dyno tuning take?

Typically between 2–4 hours, depending on the car, level of tuning, and modifications.

Do you offer dyno ECU tuning outside Slough?

Yes — while our rolling road is based in Slough, we provide nationwide ECU remapping and dyno tuning services.

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