Mileage Blockers for Dyno Testing

Mileage Blockers for Dyno Testing – Why They’re Essential for Accurate Runs

Mileage Blockers for Dyno Testing

When it comes to dyno testing in Slough, accurate power and performance readings are crucial. Mileage blockers play a key role by preventing your vehicle from logging miles during dyno runs, track days, or off-road testing. By pausing the odometer recording, these modules ensure that mileage doesn’t affect your car’s ECU calculations, giving you precise and reliable performance data.

Our professional Slough workshop installs mileage blockers on a wide range of supercars, luxury vehicles, and performance cars, including Ferrari, Lamborghini, McLaren, Porsche, BMW M, Audi RS, Mercedes-AMG, Jaguar, Range Rover, and Bentley. Installation is carried out by experienced technicians who make sure your vehicle’s electronics remain fully intact while the module is active.

Using a mileage blocker also protects the value of your vehicle during testing or tuning, preventing unnecessary odometer increases. It’s a must-have for car enthusiasts, performance tuners, and motorsport professionals who want accurate dyno results without affecting their car’s logged mileage.

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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Book Your Mileage Blocker Installation in Slough Today

Ensure precision and reliability during dyno testing or off-road events with our professional mileage blocker service. Our Slough-based team provides brand-specific installation for all major luxury and performance vehicles. We also offer guidance on safe usage, making sure your vehicle gets accurate dyno readings without affecting its odometer.

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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 a mileage blocker?

A mileage blocker is an electronic module that pauses your vehicle’s odometer, ensuring mileage is not recorded during dyno runs, track days, or off-road testing.

Which cars can use a mileage blocker for dyno testing?

Mileage blockers are compatible with supercars, performance vehicles, luxury cars, and modified models, including Ferrari, Lamborghini, McLaren, Porsche, BMW M, Audi RS, Mercedes-AMG, Jaguar, Range Rover, Bentley, and Ford.

How is the module installed?

Installation is typically plug-and-play, done by trained technicians who ensure your car’s electronic systems remain fully functional.

Can the mileage blocker be switched on and off?

Yes — most modules allow manual activation and deactivation, giving you control depending on whether the car is on the dyno, track, or off-road.

Do you provide guidance after installation?

Yes — our Slough team offers full guidance on safe usage, ensuring your mileage blocker works effectively for dyno runs and off-road applications.

Will the mileage blocker be detectable by the car or dealership?

There are no guarantees. The devices are sold for off-road use only, and we give no warranties regarding detectability.

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