Car Remapping: Why Is It Needed?

Car remapping, also known as engine remapping or chip tuning, is the process of reprogramming the electronic control unit (ECU) of a vehicle to optimise its performance. This can involve adjusting several elements, such as fuel injection, ignition timing, and boost pressure, to increase the engine’s power, torque, and fuel efficiency.

When the car is manufactured, the engine management system is programmed with a set of parameters that determine the car’s performance, such as maximum engine speed, boost pressure, and injection timing. These parameters are set to balance performance, fuel efficiency, and emissions. However, these settings are not always optimised for performance and may leave some performance potential untapped.

Car remapping involves reprogramming the engine management system with new parameters that can optimise the car’s performance. This may include increasing the maximum engine speed, enhancing boost pressure, and adjusting injection timing, which can result in more power and torque and improved fuel efficiency.

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BMW Remapping Services

Remapping a BMW can be done by a professional remapping company or a mechanic who specialises in this service. We at Reidy Remaps use specialised software and equipment to access the car’s ECU and reprogram it. The remapping process for a BMW typically takes around 1-2 hours to complete, and once the software is installed, the car’s performance can be optimised to suit the driver’s requirements.

It should be noted that remapping a BMW can invalidate the car’s warranty, and also, in some regions, it can be illegal. It is essential to check with the local laws, regulations, and your car’s warranty before proceeding with remapping. Additionally, it is necessary to contact a reputable and experienced company for BMW remapping services to ensure that the work is done correctly and safely.

BMW Remapping

Reidy Remaps Can Offer

DTC Removal
DPF Removal
EGR Removal
Diagnostics Services
Custom Remaps /
Chip tuning
Immobiliser Repair /
Rolling Road /
Dyno Runs
Turbo Conversion Mapping Work on OEM ecu
BMW 335D

How Much Does Remapping Cost?

The cost of remapping a car can vary depending on several factors, such as the make and model of the vehicle, the type of remapping being done, and the service provider’s location.

On average, the cost of a standard remap can range from around £300 to £800 ($390 to $1050). However, this cost can be more or less depending on the vehicle, the type of remapping, and the service provider.

For example, high-end luxury vehicles such as BMW, Mercedes, or Porsche may have a higher cost for remapping, whereas a standard family car will likely have a lower price. Similarly, the cost may be higher if you are looking for more extensive modifications such as custom remapping.

BMW Remap Cost

The cost of remapping a BMW can vary depending on the model and the specific engine. On average, the cost can range from £400 to £800, but it can be more or less depending on the location and the company performing the service. We will offer you a quote for BMW remap after a complete inspection.

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Benefits of Car Remapping

Car remapping can provide several benefits, including:

Increased Power and Torque

Remapping a car's engine can increase its power and torque, making the car more responsive and providing a more thrilling driving experience.

Improved Towing Capacity

Remapping can increase the vehicle's towing capacity, which is helpful if the car is used to tow a trailer or a boat.

More Reliable

Remapping can make the car more reliable, as the engine's performance is optimised, and the engine runs more efficiently.


Car remapping can be customised to suit the specific needs and requirements of the customer, such as increased power, torque, and fuel efficiency, and even tuning it for specific driving conditions.

Improved Fuel Efficiency

By optimising the engine's performance, remapping can also improve fuel efficiency, which can save money on fuel costs in the long term.

Enhanced Driving Experience

Car remapping can improve the overall driving experience, providing a smoother and more enjoyable ride.

Better Throttle Response

Remapping can improve the vehicle's throttle response, rendering the car more responsive and livelier.

Better Acceleration

Remapping can improve a car's acceleration, which can be especially beneficial for drivers who frequently travel on the highway or enjoy high-performance driving.