SPECIAL OFFER: Buy today and get FREE shipping worldwide on any order! Hurry while promotion lasts!

Mazda Diesel Chip Tuning Boxes

The most innovative and effective Mazda tuning solution you can buy – the safe alternative to an engine remap or ECU power chip!

Choose the diesel engine tuning system with proven technology and a worldwide reputation – the tuning system specifically designed and calibrated for your vehicle. A CHIP Express™ plug-in diesel tuning box will boost your Mazda's engine power, whilst reducing your fuel consumption. Buy a Mazda diesel tuning chip that will safely transform your drive for the better!



Feedback From Our Mazda Customers

David from Ramsey with a Mazda CX-5 2.2 SKYACTIV-D said: Excellent service, easy to use website. Pleasure to do business with from start to finish. Module professionally built and very easy to fit!
Stefan from Reith bei Seefeld, Austria with a Mazda CX-5 2.2 SKYACTIV-​D 175 said: A very simple and clean "installation" - done in 5 minutes with no tools necessary. Smooth increased performance, ideal for when driving in the mountains here. Keep up your great customer service and the excellent product quality! FOLLOW UP: I am really enjoying the CHIP Express tuning on my other two cars now, a Fiat Doblo 2.0 Multijet 135 and a VW Caddy 2.0 TDI 150. Great and smooth performance yet again!
Steve from Port Augusta, Australia with a Mazda BT-50 MK1 3.0D 156 said: Fitted the power chip today, well I am converted! Standard settings as supplied were perfect, lots of low end grunt for towing, great midrange which extends beyond what you actually need. No more turbo lag, now super responsive from 1000 rpm, this is much better for moving trailers or retrieving boats etc, the clutch no longer needs to be slipped to get rpm up to pull the load initially. This is the best upgrade I have done on any vehicle, money well spent! Please submit my feedback so others may benefit. Thanks for such a great product!
Glenn from Saundersfoot with a Mazda CX-7 2.2D 173 said: The chip arrived the next day and was easy to fit after following the instructions. Although there was a difference on the standard setting after "tweaking" or fine tuning the car has all the performance I require. The increase in power especially midrange in 4th/5th and even 6th gear is considerable. As to saving fuel, I'm enjoying the increase in power at the moment, but I can see that I will not have to keep changing down so much. Cheers!
Michael from Liverpool with a Mazda CX-5 2.2 SKYACTIV-​D 175 said: The chip on my 2013 Mazda CX-5 gave me increased power, torque and fuel economy which was really helpful when towing. The chip is also very easy to fit and remove, I've been using it now for nearly 5 years! Miles of smiles!
Rob from Watford with a Mazda 6 MK3 2.2 SKYACTIV-D 150 said: Just had my chip fitted to my 2015 Mazda 6 150 Sport and it has exceeded well all expectations. It has been fitted on the factory supplied setting and provides excellent acceleration and torque. I will settle for factory setting for now. Impressed!
Brian from Crawley Down with a Mazda 6 MK2 2.2D 180 said: I purchased this in Sept '14 but have waited a few months before writing a review. It's simply brilliant, reasons? (1) Improved fuel consumption under normal driving conditions (2) Noticable improved flexibilty in gears especially at slower speeds (3) Smoother engine (4) Big improvement in performance which, when used doesn't use a huge amount of extra fuel (5) Much improved torque. I got a professional to fit mine (he knew Chip Express products well) and we initially used the default mid-way setting. After trials we settled on the default setting but fine tuned it to maximum. This gave a big improvement on the edge of Traction Control kicking in so there's no stress, just a big overall improvement. Our 2011 Mazda 6 Sport (180) was quite quick anyway but this has made all the difference - more fun, even easier to drive and better fuel consumption. The car feels better for it. I therefore have no hesitation in recommeding it. I only wish I'd bought it sooner. Only one tiny downside is it does confuse the average MPG indicator but having carefully checked it, it shows 4 MPG less than is true. For example - shows 46 but is actually 50 - no complaints! Just buy one!

Any questions?

We're here to help! So contact us, or read our FAQs.

Order Today

It takes minutes to order and minutes to fit, so why wait? Buy now with complete confidence!

Select Your Model »

Inventory last updated:

What others are saying...

“Many thanks for your fantastic service! Unit ordered Sunday, delivered Tuesday am!! Unit now fitted and, as promised, the car is transformed. Winding country lanes tackled quite happily in fifth gear. Cruising on much smaller throttle openings and immediate response on acceleration. The car behaves as a mini car should behave. I had some initial doubts about spending quite a large amount of money on this item but it is worth every penny and would not hesitate to advise anyone to do similar.”

★★★★★

Alan from Coventry

Suzuki Swift 1.3 DDIS 75

“I must say l'm delighted with the improvement from your chip, its on the standard settings and the difference in the car is amazing!!! I have a smile on my face every time I get in the car, and there is about 5-7mpg improvement. With the mileage l do, l can see myself getting my money back in no time at all. So if your a doubter like me, don't be because its one of the best things l've ever bought!!!”

★★★★★

Ian from Manchester

Audi A6 MK4 3.0 BiTDI 313

“I was a sceptic at first, then after reading the experiences others had been through I decided to give it a go. I bought a new 1.7 CRDI Sportage, not the 2ltr purely for better fuel figures. Whilst this engine pulls very well in standard form, and was returning 44-45mpg even during the first 500 miles I had to go down the CHIP Express route. Well, there is absolutely no point in forking out the extra 2 grand for the 2 litre model when you can get the 1.7 and spend much less to get 2 litre power figures. Excuse the cliché’s, but this car is transformed and by a big margin too. From what I can remember about my 2 litre test drive, my 1.7 now pulls better than the 2 litre version. The low-down grunt is remarkable and pulls like the proverbial train. Fitting took minutes and was effortless, the box was kept on factory settings, I feel there is no need to mess with it. Needless to say I am now a very happy boy and would without question take this route again. I would recommend this to any diesel Sportage owner. Many, many thanks for a remarkable product and a customer service that is rare in this country!”

★★★★★

Ron from Thetford

Kia Sportage MK3 1.7 CRDI 116

“As do many, I took the 'if it sounds too good to be true, it probably is' approach to performance chips. But CHIP Express were recommended by an impeccable source who had had experience with their product on my model of car - a Citroën C6 with the 2.7 HDi twin turbo diesel. Following a first rate response to a query, the product has delivered in spades. Ten days and more than 1000 miles of mixed town, country, low and high speed driving later I am certainly getting more than 10% more from a gallon, and probably 15%, and the performance is markedly better. Low speed response is immediate and has eradicated what I took to be baked-in lag in a big automatic turbo diesel, and mid-range acceleration is silky smooth, including up inclines. A very good car has been turned into the excellent car I had hoped for all along.”

★★★★★

Simon from Ketteringham

Citroen C6 2.7 HDi 204

“Your customer service, speed at which you deal with questions and chip (most importantly) are second to none. This is the 3rd variation of the chip that I have run, not only do I see the fuel savings made each and every time I fill up but I also feel the changes in the increased performance too. Far too often people only feel the need to leave negative feedback on a product, it's very rare that people take the time to leave positive comments however on this occasion I feel compelled to do so. A brilliant product and one that I highly recommend should you want to make the most of your cars potential performance and make a fuel saving to add into the bargain. What's not to like?! It's been a pleasure dealing with the team at Chip Express, I just wish everyone I dealt with in life was this professional! Thank you.”

★★★★★

Lee from Halifax

BMW 1 Series F20 120d 190

“May I congratulate you on this diesel tuning product as it has made a noticeable difference to my Land Rover Discovery. I have tried other diesel tuning boxes for my previous vehicles (Kia Sorento, Peugeot 206 and Vauxhall Vectra)... and they all produced slight engine stuttering under certain load conditions. The CHIP Express system does not show any evidence of this and is equal to the likes of an ECU remap (which I have also had done before) for smoothness and noticeable power gains. This would be the only diesel tuning product I would recommend.”

★★★★★

James from Callington

Land Rover Discovery (3) 2.7 TDV6 190