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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.

Order Today

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

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What others are saying...

“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

“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

“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

“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

“A good product and a good service deserves recognition: I fitted a CHIP Express unit to my Insignia. What an amazing bit of kit! My fuel economy and performance went way up and with the mileage I do was a Godsend! On a run to Aberdeen from Hull I returned an average of 62 MPG and I drive quite energetically! I've just taken up the trade in offer and saved a few quid on a new system. The Vauxhall has now gone with 125,000 trouble free miles and I have changed car to a Volvo S60 D3. I'm looking forward to fitting the Chip Express unit and reaping the rewards, thanks guys!”


Frazer from Skirlaugh

Vauxhall Insignia MK1 2.0 CDTI ecoFLEX 130

“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