Find Your Vehicle
The most innovative and effective John Deere 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 John Deere's engine power, whilst reducing your fuel consumption. Buy a John Deere diesel tuning chip that will safely transform your drive for the better!
Richard from Christchurch with a John Deere 6330 4.5 4V R4 CR 105 said:I just have to write to let you know how much better my JOHN DEERE 6330 tractor is running now your chip is fitted. The power upgrade is astounding and I can now pull heavy loads without changing down so much. I would recommend your company to any farmer with confidence. Cheers!
Tim from Tewkesbury with a John Deere 6630 6.8 4V R6 said:Fitted first to a John Deere 6630. It transformed this tractor from 125hp up to 157hp. So now have two more on my John Deere 7530s and it takes them to well over the 220hp - all for no extra fuel. Great service from Chip Express - answered my questions before purchasing and sent it out very promptly. Thank you. Everyone should get one, or two!
Adrian from Jondaryan, Australia with a John Deere 9770 STS 9.0 R6 360 said:Just to let you know I fitted a CHIP Express to my JD 9770 Combine with excellent results, more power and less fuel (8 to 10 litres/hr) making harvesting a lot easier under difficult conditions. I have had the unit over 12 months now without any problems. The chip is priced very well compared to other brands. Thank you very much!
Tim from Thefford with a John Deere 7450 Harvester 13.5 R6 said:I would like to the time and say how fast and brilliant your service has been. I run three of your units and have been very pleased with them. Many thanks again.
Warren from Lockrose, Australia with a John Deere 8130 9.0 R6 215 said:After recent floods devastated our farm we had to re-level all the paddocks. We purchased a 3 meter wide laser bucket to pull behind our John Deere 8130. After spending many hours of working the tractor on the farm and levelling we were very disappointed in the performance of the tractor. There was no torque what so ever at below 1500 RPM and no power. We had to work it in the 1700 to 2000 RPM range this meant constantly changing gears and riding the clutch under load. Fuel consumption was up to 36 litres per hour. After fitting your chip the torque and power from 1300 RPM up was incredible and fuel consumption was max 25 litres per hour plus working in higher gears we are very happy with your product. It was easy to fit just like you said and has made it a good machine to operate.
“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
“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
“Be assured, this is NO gimmick. Arrived yesterday (less then 24 hours after the order was placed) and fitted today. The fitting was easy especially with the photos and instructions sent with the chip. The first thing I noticed was the responsiveness of the engine from a standing start, no more lag. I then went on a 30 minute drive both motorway and sideroads and my average fuel consumption went UP from 33.3mpg to 38.7mpg. My motorway speed varied from 60 to 85mph and the sideroads from zero to 40mph. I am so pleased with the whole result. This is worth every single penny paid. Thank you!”
Edwin from Bridgend
Ford Kuga MK2 2.0 TDCi 163
“A friend recommended one of your "gadgets" a year ago and being not-very-techno (but Scottish and keen to save money!) I bought one. The gizmo has TRANSFORMED the performance of my Land Rover Freelander 2 TD4 AND improved the fuel economy by a genuine 15%; so much so that I have bought another one for our Freelander 2 SD4 which is now a REAL Q-car! (And of course saves fuel...) I have never written a review before (though strangely I do read them and take notice of them, whilst half-believing that they are written by the owner's chums!) so to have made me pick up pen & paper so to speak - I MUST be delighted! Thanks for making technology so simple and so successful!”
Andrew from Lochwinnoch
Land Rover Freelander (2) SD4 190
“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