Speed Limiter Removal
Remove a factory-imposed top speed limit on eligible vehicles. Vehicle eligibility verified before any work begins.
Eligibility Verified Before Work
We check your vehicle's eligibility before accepting any booking. We will not remove a statutory speed limiter from a road-going vehicle that is legally required to carry one. Specific thresholds are covered in the FAQ below.
Vehicles used exclusively off public roads - genuine track, competition or off-site use only - sit outside the statutory rules. If that's your situation, call us to discuss.
Beyond The Factory Ceiling
Speed limiters come from two very different places. Some are written in at the factory as a manufacturer policy choice - for example, the 155mph governor on a number of German marques. Others are added later by a fleet operator on an ex-business vehicle to cap their drivers' speed. Neither is a legal requirement, and on eligible vehicles both are legitimate to remove.
Send us the make, model, year and plated weight from the VIN plate and we'll confirm whether the modification is permitted on your specific vehicle. If it is, we read the original ECU file, back it up, modify the limiter value and flash the updated file back. A diagnostic verification follows to confirm there are no related fault codes.
We will always be straight with you about the implications: insurance declarations, potential warranty effects, and the fact that UK road speed limits still apply regardless of what your vehicle is capable of. The original ECU file is kept on record, so the limiter can be reinstated at any time.
What's Included
When This Applies
Factory-Limited Performance Cars
Vehicles where the manufacturer has set a top-speed governor in the ECU as a policy choice, not a legal requirement - the classic 155mph delimit on a number of German marques is the textbook example.
Ex-Fleet Light Commercial Vans
Standard Transit, Sprinter, Crafter and similar light commercial vans plated at or under 3,500 kg MAM, where a previous fleet operator added a policy-fitted limiter. That limiter is a contractual device, not a statutory one, and is legally removable.
Vehicles We Cannot Accept
HGVs and vans plated above 3,500 kg MAM, including Luton bodies, 350 L4/L5 chassis-cabs and certain 4.25t electric variants. Coaches and minibuses with more than 8 passenger seats first used from 2005. Any vehicle requiring a statutory limiter under C&U Regs 1986.
Frequently Asked Questions
It depends on the vehicle. Speed limiter rules in the UK are set by vehicle class under the Road Vehicles (Construction and Use) Regulations 1986. On most cars and on light commercial vans plated at or under 3,500 kg MAM, there is no statutory limiter and removal is a permissible modification. On HGVs, larger vans and 9+ seat passenger vehicles, a statutory limiter is required and we cannot remove it. We check your VIN-plate weight before accepting work and will be straight with you about what's permitted.
Goods vehicles plated above 3,500 kg MAM (HGVs, Luton-bodied light commercials, 350 L4/L5 chassis-cabs, certain 4.25 tonne electric vans) are required by reg 36B to be limited to 90 km/h and we will not remove that limiter from a road-going vehicle. Buses, coaches and minibuses with more than 8 passenger seats first used from 2005 are required by reg 36A to be limited to 100 km/h and we will not remove that one either. The plated weight on the VIN plate is the authoritative figure, not the trim badge.
Possibly, yes. The Road Vehicles (Construction and Use) Regulations only catch the vehicle when it's being used on a public road. A vehicle used exclusively off public roads - genuine track, competition or off-site use - sits outside that scope. Before agreeing to anything, we'll discuss the vehicle's actual use, whether it's road-registered or SORN'd, and what annual test (if any) it's subject to. Call us with the details and we'll be straight about whether we can help.
On a standard Transit, Sprinter, Crafter or similar van plated at or under 3,500 kg MAM, almost certainly yes. Fleet operators often fit a policy limiter (via telematics or an aftermarket ECU change) to cap their drivers' speed - that is a private contractual device, not a statutory legal requirement, and on a light commercial van it can legally be removed. If the same van has been plated above 3,500 kg (Lutons and larger conversions sometimes are), it's a different matter and we'd have to decline. Send us the VIN-plate weight and we'll confirm.
Yes. Any modification to your vehicle's ECU - including a speed limiter removal - must be declared to your insurance company. Failing to disclose modifications can invalidate your policy. We strongly recommend speaking to your insurer before booking work and we are happy to provide documentation of what has been changed.
ECU modifications can affect manufacturer warranty cover, particularly on driveline and engine components. The original ECU file is always backed up before any changes, so if you need to return the vehicle to factory state - for example before a warranty claim or before selling - we can reinstate it.
The MOT does not test for ECU modifications and a speed limiter removal will not cause an MOT failure on a vehicle that is otherwise compliant. Note that this answer applies only to vehicles where the modification is legally permitted in the first place - vehicles requiring a statutory limiter are a separate matter and we do not carry out work on them.
Yes. We always back up the original ECU file before flashing any changes. If you need to revert to factory calibration - for resale, a warranty visit, or any other reason - we can restore the original file.
Typically 1-2 hours. That covers the initial eligibility check, ECU read, file modification, flash, and a diagnostic verification before handover. We come to your home or workplace anywhere across Manchester, 7 days a week.
Check Eligibility
Call us with your vehicle's make, model and year. We'll confirm whether we can help before any work is booked.