Frequently Asked
Questions

Yes. The way we tune every vehicle is safe. Before any tuning takes place, we carry out a full health check to ensure the vehicle is running correctly and is fit for tuning. We also ensure all tuning stays within the safe operating limits of the engine and its components.

We never push a vehicle beyond what it can safely handle. If we identify any issues during the health check, we will advise you before proceeding.

Dyno tuning is a safe and controlled way to tune a vehicle's engine management system. Your vehicle is securely strapped to the rolling road, which simulates real road conditions and allows for accurate measurements of power output.

Our technician can make adjustments to the engine management system in real time, ensuring the vehicle remains within safe operating parameters throughout the entire process. Data logging during the session allows us to monitor performance at every stage and make further adjustments if needed.

It is possible that remapping or tuning could affect your manufacturer warranty. Some manufacturers consider ECU modifications to be an unauthorised change and may not cover repairs or issues that arise as a result.

We always recommend checking the terms and conditions of your warranty and speaking with your manufacturer or dealership before booking. Our team is happy to advise you on this if you have any questions.

Yes. All of our tuning is carried out on our dyno rolling road. This allows us to accurately measure power output and torque before and after tuning, and make any necessary software adjustments in a safe, controlled environment.

Data logging during the session ensures we create the best possible result for your specific vehicle. You also receive a full before and after power printout so you can see exactly what your vehicle is producing at every point across the rev range.

Stage 1 dyno tuning typically takes 2 to 4 hours to complete, depending on the vehicle and any additional services booked alongside it.

You are more than welcome to wait on site. We have a comfortable waiting area with free Wi-Fi, free drinks and Netflix to keep you comfortable throughout your appointment.

Yes. You will receive a full printout showing the before and after performance of your vehicle. This includes power output, engine bhp, and torque figures, allowing you to see exactly what improvements the tuning has made.

It's something we are proud to hand over, there is nothing to hide when you tune on a dyno.

We operate by appointment only. Walk-ins cannot be accommodated as each session requires dedicated dyno time and preparation.

Booking is quick and easy, you can secure your slot via our website using the link below.

Book your appointment online →

Yes, please tell us before your appointment. Most cars are now read through the diagnostic (OBD) port. Our equipment matches your ECU’s software and hardware numbers to the manufacturer’s standard file for your vehicle, rather than copying what is currently on the car. This means the car is put back to factory software, and any previous tuning or software changes, including changes to the immobiliser, will be removed.

If we know in advance, we can plan for it. If we only find out on the day, it can mean extra time and additional cost (see our booking terms). If your car is already tuned and you’d like us to retune it, please get in touch before booking.

The difference is significant. Our custom Stage 1 dyno tuning involves fine-tuning the engine management system on a rolling road, which allows us to accurately measure and adjust engine parameters including power output, torque, air-fuel ratio and boost pressure in real time.

This ensures the engine is operating within safe limits and that the calibration is fully optimised for your specific vehicle and its components. Mobile flash maps or cheaper off-the-shelf maps written without a dyno cannot offer this level of precision. They do not account for the unique characteristics of your vehicle and are written blind.

Our primary speciality is custom dyno tuning, where we adjust the ECU programming to optimise engine performance and power output. However, we also offer a range of additional services including:

Gearbox tuning (xHP)  ·  DPF delete  ·  EGR delete  ·  AdBlue delete

If you are unsure what is right for your vehicle, get in touch and we will advise you on the best approach.

No. We don’t offer pops and bangs, burbles, crackle maps or any other sound-related changes, on any car, and they are not part of Stage 1, Stage 2 or gearbox tuning. They work by sending extra fuel into the exhaust when you lift off, which adds heat and wear to the turbo, catalytic converters and exhaust. Our tuning is about smooth, reliable performance, proven on our dyno.

No. We specialise in custom dyno tuning and ECU and gearbox software, so we don’t fit parts such as exhausts, downpipes or intakes, we don’t carry out servicing or repairs, and we don’t do coding or retrofits such as Apple CarPlay. If your car already has parts fitted, tell us what’s on it when you get in touch and we’ll let you know what we can do.

We tune for performance, not fuel economy, so we don’t promise or guarantee any MPG saving, and we don’t offer economy or eco maps. How much fuel your car uses comes down mostly to how it’s driven: use the extra performance and it will use more.

We would like to help, but under UK data protection law (UK GDPR) the records of the work we carry out belong to the customer who booked it. We can’t share them, or even confirm that we worked on the car, without that customer’s permission.

Ask the person you bought the car from to email sales@dcremappinguk.com from the email address they booked with, giving the registration and your name, to say we can share the details with you. As soon as we have that, we’ll get in touch.

Yes, if you would like them to. Email sales@dcremappinguk.com from the email address you booked with, giving the registration and the buyer’s name, and say we can share the details of the work with them.

We won’t share anything with a buyer, a dealer or anyone else without that email from you, even if they have the car and its V5C. See section 25 of our Booking Terms.