The CHIP Express™ plug-in system can be self fitted in minutes!

Even if you've never worked on a car before, if you can open the bonnet and have basic DIY skills you can fit a CHIP Express™ digital tuning system. Follow the supplied photo-instructions for your specific vehicle and you'll have the job done in minutes.

Robin from South Yorkshire told us: The ease of fitting was incredible (literally minutes as you promised).
Keith from near Grantham said: It took me just under 10 minutes from start to finish to install - if I can do it, anyone can.
Paul from Oxfordshire was: Surprised how simple it was to install.

It really is 100% plug-in. There are no wires to cut and the supplied cable has been designed for your vehicle and uses the exact same connectors as the manufacturers. You just plug it in and the job is done. If you need any assistance, just call us and we'll be glad to talk you through it. And remember, if you really don't want to fit it yourself, any local garage or mechanic can easily fit it for a small charge.

Follow these 6 simple steps for more power and better economy

Step 1 Switch off engine.
Step 2 Open bonnet and remove engine cover where necessary.
Step 3 Locate the correct connector(s).
Step 4 Plug in the CHIP Express™ system line.
Step 5 Secure module with pouch's velcro strap, velcro ties are also provided to secure cabling.
Step 6 Replace engine cover.

*For illustrative purposes only, photo-instructions for your specific engine will be supplied with your order.

Choose the best diesel tuning system available!

Unlike cheaper, untested, "generic" systems, the CHIP Express™ digital tuning system retains all the protective functions and fault diagnostics of your vehicle's original ECU; always operating well within engine tolerances. Our digital microprocessor circuited units are all manufactured using the highest quality surface mounted components contained within a compact, light weight and robust housing. In addition only adaptor plugs that simply plug in to existing connectors are used. Every CHIP Express™ system undergoes rigorous and extensive testing on new vehicles ensuring safety, reliability and suitability requirements are met. Rest assured you are buying the best quality, most rigorously tested system available!

How the CHIP Express™ system works...

This is no "generic" system, no "one size fits all" solution - using digital microprocessor technology the CHIP Express™ system utilises proven engine-specific dynamic maps to analyse the individual data for different fuel injection cycles and conditions millions of times per second, the information resulting from this analysis is used to take advantage of the engines lean running to optimise combustion efficiency and improve atomisation by precisely re-calibrating the injection system. This intelligent feature gives the unit the ability to adapt to your own driving requirements, all without the need for any complicated "manual" adjustment or tweaking! That is what we mean when we say the system "works right out of the box".

Why buy CHIP Express™ over cheaper analogue or generic digital tuning systems?

Chip Express™ digital tuning systems are far superior to analogue units. There are many inferior analogue designs currently on the market; the first is a resistor in a box that either trips the ECUs cold fuel maps within the low RPM range only or fools the air flow meter readings. These crude methods of tuning have many associated problems. Next is a resistor type analogue or generic digital chip; these systems use primitive electronics and have no intelligence. They may initially work to a degree but often cause poor idle running, hesitation, smoke on acceleration, engine lights to illuminate, limp mode (as they are working outside safe parameters), DPF / FAP blockage or regeneration issues. These substandard methods are NOT engine specific and non-comparable. CHIP Express™ systems are different; they use unique and innovative software in conjunction with the very best components, giving you the next phase in digital tuning technology. Our solutions combine impeccable build quality with unique electronic design. What's more, they are bespoke to their application, fully digital and keep the engine standard at idle whilst providing optimum power throughout the rev-range. This engine specific, tested and approved software is held in the serial memory and works via a sophisticated timing circuit using high speed multi-microprocessor technology, optimising your engine power safely and providing a driving performance second to none. Why take chances? Choose the No. 1 provider of diesel performance enhancing solutions, buy only the very best for your vehicle from a company unequalled in innovation.

CHIP Express™ versus chipping or a remap... what is the difference?

Chipping involves the physical opening of your vehicles ECU (electronic control unit); often breaking tamper proof seals in the process (thus immediately invalidating your vehicle warranty), the standard chip is then de-soldered at great risk and replaced with a modified version. A remap like chipping also requires the removal of your vehicles original ECU settings, meaning that returning your vehicle back to standard can also be a major complication. The CHIP Express™ plug-in system addresses these issues as it works in conjunction with your original ECU settings rather than replacing them, it can easily be self installed, removed, adjusted for more performance and transferred if you change your vehicle - it cannot not be deleted during routine servicing, even if left fitted. Importantly it must be noted that the CHIP Express™ system works from part to full throttle load, enhancing real world drivability even on light throttle openings, other methods respond at close to full throttle load only. The CHIP Express™ system also produces more low RPM torque when compared to a remap so it’s ideal if you drive a laden vehicle or if you are looking for better economy potential.

It takes the market-leader in tuning technology to give you all these important benefits:

Fitting Benefits

  • 100% plug-in, can be fitted in minutes and removed leaving no trace
  • Supplied with engine specific photographic fitting instructions
  • Does not require the removal of your vehicle's original settings
  • No complex setting up, works right out of the box - unlike "generic" chips
  • Cannot be deleted during routine servicing if left fitted

Technical Benefits

  • Designed for use on both manual or automatic vehicles
  • Sports button compatible – works in conjunction with all selected modes
  • DPF/ FAP diesel particle filter and EGT safe
  • Keeps air fuel ratios at an optimum – fully emission compliant
  • Can be used on vehicles that use urea and emission additive
  • Does not interfere with service schedule intervals
  • All engine safety systems remain operational – works within safe parameters
  • Max turbo boost pressure remains unaltered
  • Automotive grade – extreme temperature and vibration resistant

Drivability Benefits

  • Superior performance on demand whilst keeping the engine standard at idle
  • Eliminates flat spots, removes turbo lag and sharpens throttle for a smoother drive
  • Select higher gears sooner, change down less, reduce revs - better economy
  • Use less throttle for similar driving conditions, further reducing consumption
  • Utilises all of the RPM range, for safer overtaking
  • Produces more low down torque compared to a remap - helps towing
  • Reduces engine noise levels

Peace of Mind

  • Guaranteed performance increase or your money back
  • Class-leading "repair or replace" warranty
  • Respected, trusted brand with thousands of satisfied customers worldwide

Achieve a guaranteed increase in performance from a name synonymous with digital diesel tuning systems – CHIP Express™. We ship units worldwide on a daily basis, just read our reviews page and see for yourself what genuine customer satisfaction really is. You can certainly find cheaper – but you definitely won't find better! Choose CHIP Express™ "next generation" digital tuning systems, the ultimate plug-in upgrade!


Because every cutting edge CHIP Express™ system is made from only the highest quality components, secured inside a tough automotive enclosure, we have the ultimate confidence that your system will deliver a long, trouble-free life.

The system uses highly sophisticated microprocessor technology, running state of the art software specially developed for the vehicle it is used with. However in the unlikely event of failure, CHIP Express™ guarantee to repair or replace your system, quickly, efficiently and at no cost to you, for a full 3 to 5 years (depending on chosen warranty) from the date of purchase.

In addition, if after installing your kit you do not totally agree that it has unleashed a new level of performance from your engine, simply return it to us in its original packaging within 28 days of receipt and CHIP Express™ will refund your full purchase price, without hesitation or question.

Buy now with complete confidence!

Whether you drive a manual or an automatic, a car, van, motorhome, tractor or even a boat, we have a diesel tuning chip for you - there are no wires to cut and no special tools needed, it takes just minutes to fit. You are also protected by our comprehensive warranty PLUS our 28 day from receipt money back guarantee: if you don't agree that our advanced, cutting-edge system gives you more power, more torque or better economy, then return it to us in its original packaging and condition and we will refund you without hesitation. Check out our vehicle selector now to see if yours is listed then order online!

Any questions?

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

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What others are saying...

“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

“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

“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 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

“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

“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