Speed Limiter Removal / Vmax Off
Off-road, export & motorsport vehicles only
Many cars ship with a manufacturer top-speed limiter — the classic 155mph Vmax, or lower on some models. We can raise or remove it in software, but this is strictly for genuine off-road, export or motorsport use.
The legal bit (we'll be quick)
Bangs, pops, no speed limiter, launch-control heroics — cracking fun, and strictly track and off-road. Out on the public road the noise and speed rules didn't magically vanish, so keeping it legal is on you. We build it; you behave. Still under manufacturer warranty? Fair warning — this'll almost certainly wave it goodbye, so weigh that up first.
Track & off-road only. The noise and speed rules still apply out on the road — keeping it legal is on you, and it can void a manufacturer warranty. We build it, you behave.
What it is
A speed limiter, often called Vmax, is a manufacturer-set electronic cap on the vehicle's top speed. It's written into the ECU, so raising or removing it is done entirely in software — no hardware changes. 'Vmax off' simply lifts or removes that ceiling so the vehicle isn't electronically held back at the factory figure. It doesn't add power; it just removes the artificial top-speed cap.
Who it's for
There are legitimate reasons to want this: vehicles used purely off-road or in motorsport, cars destined for export to markets that don't impose the same limit, or track vehicles being prepared for high-speed events. For example, a car being exported to a market without a mandated cap, or a dedicated track car, may genuinely need the limiter lifted. For normal road use in the UK it serves no purpose — the speed limits are far below the limiter anyway.
Who it's for
How we do it
We remove or raise the limiter in software using dealer-level tools, flashing from a stable, healthy power supply so the ECU write is clean and safe. Your original file is always backed up first, so the change is completely reversible — helpful if the vehicle later returns to standard road use or a different market. We'll also talk through whether removal is genuinely appropriate for your intended use before we do anything.
Out on the road (yeah, behave)
Important: speed limits still apply on public roads regardless of whether a limiter is fitted, so removing it gives you nothing legal on the road. On some vehicles the limiter is a safety device, and on certain vans and commercial vehicles a speed limiter is a legally required piece of equipment. For those reasons, removal is only appropriate for genuine off-road, export or motorsport use, and it is entirely the owner's responsibility to ensure the vehicle remains lawful for the road it's used on. As always, declare any modification to your insurer.
Speed Limiter Removal — the questions
Is removing the speed limiter legal?
Speed limits still apply on public roads whether or not a limiter is fitted, so removal gives you no legal benefit on the road. On some vans and commercial vehicles a limiter is legally required equipment, and on others it's a safety device. For those reasons we only offer this for genuine off-road, export or motorsport use, and it's the owner's responsibility to ensure the vehicle is lawful for where it's driven.
Will removing the limiter make my car faster?
No. It doesn't add any power — it simply removes an electronic cap on top speed. Below that cap the car behaves exactly the same. Most road-driven cars never get anywhere near the limiter in the first place because the speed limits are far lower.
Can it be put back to standard?
Yes. We back up the original file before making any change, so we can flash the factory limiter straight back — useful if the vehicle returns to normal road use or is sold on.
Should I tell my insurer?
Absolutely. Removing a speed limiter is a modification and should be declared. Given it's only suitable for off-road, export or motorsport use, your insurer needs to know the vehicle's intended use — undeclared mods can invalidate cover.
Off-road or export build?
Tell us the vehicle and how it's used and we'll advise honestly.
Related solutions
Done properly
Software handled with genuine dealer-level tools on a stable power supply, your original file backed up first — fully reversible.
Off-road, export or motorsport vehicle?
Tell us the vehicle and how it's used — we'll give you an honest steer, road-legal or not.
Mobile across Kent & the South East