Benefits of Remapping Vs Diesel Tuning Boxes

If you're looking to boost your car's performance, remapping and diesel tuning boxes are two options to consider. But what are they, and how do they work? In this article, we'll explore the ins and outs of remapping and diesel tuning boxes, including the different types of tuning available and the benefits they offer.

What is Remapping?

Remapping, also known as ECU tuning or chip tuning, involves altering the settings on your car's Engine Control Unit (ECU) to improve performance. The ECU controls a wide range of factors that affect your car's engine, including fuel injection, turbo boost pressure, and ignition timing. By adjusting these settings, a remap can improve power and torque, increase fuel efficiency, and enhance throttle response.

There are several ways to remap your car, including:

OBD Remapping: This involves plugging a device into your car's OBD port to read and modify the ECU data. It's a quick and simple process that can be done in minutes, but it can also be limited in terms of how much of the ECU data can be read.

Bench Tuning: This involves removing the ECU from your car and modifying it on a bench. It allows for more extensive reading of existing data but can be more time-consuming and expensive.

What is a Diesel Tuning Box?
A diesel tuning box is a device designed for diesel engines. Diesel engines are known for their durability and fuel efficiency, but they can also be improved with the right tuning. Diesel tuning boxes can improve power and torque, increase fuel efficiency, and reduce emissions, but they can never make the same improvements as a professional remap. A diesel tuning box, regardless of make or model cannot overcome the various limiters set in the engine management system.

As an example the tuning box might be able to trick the ECU into injecting more fuel and improving power, however, once the torque limits in ECU software are reached, they will cut in regardless of how much fuel is injected into the engine, a remap allows new torque limits to be set meaning that you will not only get more torque, you will also get it right up to the rev limiter.

There are two main types of diesel tuning, remap or tuning box

Plug-and-Play Tuning box: This involves plugging a device into your wiring loom that tricks the ECU into injecting more fuel and typically raises rail pressure. It's a simple and affordable option, but it's like using a hammer in place of a precision screwdriver when compared to a professional remap

Remapping offers a range of benefits, including:
Improved Performance: By optimising the ECU settings, remapping and diesel tuning boxes can improve power and torque, as well as throttle response, but the effects are limited by the ECU software, which is why a remap is the preferred option as it actually provides the ECU with new instructions rather than trying to trick it in the same way a diesel tuning box does.

Increased Fuel Efficiency: By adjusting the fuel injection settings, remapping can improve fuel efficiency and reduce your overall fuel costs.

Reduced Emissions: Remapping can also help reduce emissions by optimising the engine's performance.

Tailored to Your Needs: Whether you're looking for maximum power or improved fuel efficiency, remapping can be customized to your specific needs and driving style.

In conclusion, remapping is an effective way to improve your car's performance. Whether you choose OBD remapping, bench tuning, or service mode tuning, make sure to choose a reputable tuning company with the knowledge and expertise to get the job done right. With the right tuning, you can enjoy improved power, fuel efficiency, and overall performance from your car.

IMI Certified Tuning Specialist

MPG Tuning Ltd
Unit 44 Rumerhill Business Estate
Cannock, Staffordshire, WS11 0ET

 Tel: 01543 466662


MPG Tuning Offer Professional ECU Remap and Tuning services including but not limited to ECU Remapping, EGR Delete, DPF Solutions, VAG Emissions Recall Scandal Rollback, Tricore Processor Programming, Boot Mode, and Traditional Chip Tuning.

MPG Tuning is based in Cannock Staffordshire but serves customers from further afield typically from the following areas, Lichfield, Burntwood, Rugeley, Stafford, Brownhills, Walsall, Wolverhampton, Birmingham, Tamworth plus many more areas throughout the West and East Midlands.

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Choosing a Good Tuner is as important as choosing a Good Doctor.

You will be presented with a bewildering selection of companies, all claiming to be the best in the industry. Unfortunately the industry has been flooded with “Get Rich Quick” merchants all desperate to take your money from you. In many cases the “Get Rich Quick” operators have invested in “Cloned” counterfeit remapping tools off the internet. They have little “if any” industry knowledge, experience or liability insurance…

Don’t get sucked in by a good story and what appears to be an incredible price. Instead of taking the word of self-acclaimed tuning experts, a search on google will reveal some very interesting, yet disturbing facts about a few “so called” professionals. Unlike some testimonials “Bert for Bognor says we are Brill” our customers are real people. Don’t take our word for it, ask the people that know best “Our Customers”

I went for a remap on my T5 as it had an awful flat spot around 2800 rev's I got great personal service and its like having a new engine in the van smooth power and greater economy.... Highly recommended wish I'd done it months ago it would have paid for it self already thanks a lot hills are no longer a drag.

Adrian McManus

Popped in to see Mike on Friday to have my A4 2.0TDi 170hp remapped. Have to say I was a little pessimistic at first having being told by another firm that remaps on these were a nightmare so was expecting the worst! Thankfully, nothing of the sort, straight in, one error message unknown but Mike worked it out and all done in no time. Straight out for a test run and the drive is very different, certainly mid ranged (where these engines seem to suffer) pulls away nicely and can definitely feel the benefit. Best money I've ever spent on a car in, well, forever! Thanks again Mike

Mark Patterson

Had the ECU my 320D remapped by Mike yesterday. Very impressed with the results. Noticed it straight away after having it done. Service was also great, talked me through all of it to get exactly what I wanted out of it. Highly recommend mpg tuning.

James Aston

Took my Civic Mk VIII 2.2 CDTI to Mike following a recommendation from a friend who's had his last few cars remapped at MPG., professional service and answered any questions I had. Customised remap that gave me a good balance between performance and economy. Mike was happy to let me watch the whole procedure and explained what he was doing. Makes a good brew as well! Would highly recommend, Will definitely bring my future motors here.

Dan Wright

Just had the ECU on my BMW 320D remapped and it is absolutely superb the power is unbelievable and the service is outstanding would recommend it to anybody he has transformed my car from 160 bhp to 207 bhp no smoke at all and the power delivery is awesome throughout all of the gears really happy.

Tom Dawson

Had my Astra 1.9cdti remapped here with EGR delete for a great price, I have now got the full power and yes it's rapid lol.... Mike was helpful and talked me through it all and also good after care as well. Thanks again.

Scott Walker

Had my T5 remapped today. Over the moon with the results! Really reasonable price and customer service is second to none! Would highly recommend!

Ethan Tunnicliffe

I had my car remap done and I'm really pleased with MPG Tuning. Great atmosphere, great service and I will recommend it to all my friends. Thank you once again. Renault Megane 2.0 Turbo petrol with 165 hp standard

David Wojtasik

Took my Astra estate for a ecu remap, excellent job feels a lot more responsive!

Umair Khalid

Mike remapped my car. Perfect professional service from start to the end. For less than 2 hours everything was done. If you want a different feeling when you are driving MPG Tuning is your place to go.

Dimitar Dimitrov

My boyfriend has exactly the same car as me 1.5 diesel fiesta, had his remapped and was over the moon with it. I had never thought of having a car remap but after driving his, mine felt heavy and slow so decided to get mine done too, now I am converted I love it even more and I am getting about 80-90 miles per tank better than before, very happy , great friendly service and awesome cuppa while we waited

Kelly Williams

Had my renault van remapped at mpg tuning, awesome power, can now keep up with pigeons, thanks Mike for an excellent job 👍👍



Our lead technician has over 16 years’ experience in the tuning industry and long term connections with some of the Worlds most experienced data programming and tuning specialists. We are extremely passionate about our customer satisfaction and strive for a perfect result every time.

Contact MPG Tuning today to discuss options for a professional ECU remap or Call Us: 01543 466 662