Speed Limiter Removal & Disable Service

Unlock Your Vehicle's True Performance: Speed Limiter Removal

(Introduction) Have you ever felt your vehicle hit an invisible wall just as it’s getting into its stride? That’s your factory-installed speed limiter.

Many high-performance cars (like BMW M, Audi RS, and Mercedes-AMG) are electronically limited to 155mph (250km/h). Similarly, most commercial vans are heavily restricted to 60, 65, or 70mph for fleet purposes. This artificial limit can be frustrating, especially when you know your vehicle has more to give.

At Miles Back, we are experts in ECU software. We can safely remove this electronic “top speed” limiter, giving you full control over your vehicle’s performance.

What is a Speed Limiter and Why is it There?

A speed limiter is a piece of code within your vehicle’s Engine Control Unit (ECU). It’s put there by the manufacturer for several reasons:

  • “Gentleman’s Agreement”: A long-standing (though unofficial) pact between German manufacturers to limit their high-performance cars to 155mph.
  • Tyre Safety: To ensure the vehicle doesn’t exceed the speed rating of its standard-fit tyres.
  • Fleet & Commercial Policy: Vans and fleet vehicles are often limited to lower speeds to manage fuel costs, insurance, and driver behaviour.
  • Market-Specific Limits: Vehicles imported from countries like Japan are often limited to 112mph (180km/h) by law.

This limit is rarely the true top speed of the vehicle. It’s just a line of code holding it back.

Our Speed Limiter Disable Service

Our service is a straightforward and safe software modification. We don’t need to add any new hardware to your vehicle.

  1. Full Diagnostic: We first connect to your vehicle and run a full diagnostic health check to ensure there are no underlying issues.
  2. Read Original Software: We take a secure backup of your vehicle’s original ECU software (your “map”).
  3. Expert Modification: Our technicians analyse the software, locate the top speed limiter map, and safely remove the restriction.
  4. Write New Software: We flash the newly modified, unrestricted map back onto your vehicle’s ECU.

This process can often be combined with one of our Stage 1 performance remaps, allowing you to gain more horsepower and torque at the same time you remove the speed limiter.

Who is this Service For?

  • Performance Car Owners: Unlock the full potential of your M, RS, AMG, or other high-performance vehicle for use on the track or unrestricted roads (e.g., the German Autobahn).
  • Van / Commercial Drivers: Remove frustrating 60mph or 70mph limits that can make overtaking difficult and restrict your progress. We can also adjust the limiter (e.g., from 60mph to 75mph) if you prefer.
  • Owners of Imports: Remove the 112mph (180km/h) limiter common on Japanese import vehicles.

A Note on Safety, Legality & Responsibility

We believe in being fully transparent with our customers.

  • You Are Responsible: Removing the speed limiter does not give you permission to break UK national speed limits on public roads. All public road laws still apply. The driver is solely responsible for how the vehicle is driven.
  • Insurance: This is a modification to your vehicle. You must declare it to your insurance provider, as failure to do so could void your policy.
  • Mechanical Limits: While we safely remove the electronic limit, you are responsible for ensuring your vehicle’s mechanical components (especially tyres and brakes) are in good condition and rated for any potential high-speed use.

Why Choose Milesback?

  • Expert ECU Calibrators: We are software specialists. We modify the code professionally and safely.
  • Genuine, Up-to-Date Tools: We only use the latest, licensed diagnostic and remapping equipment.
  • Safe & Reversible: We always back up your original factory software. The process is completely reversible if needed.