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Plug-in Diesel Chip Tuning Boxes

Release up to 40% more POWER
and 20% better ECONOMY !

Cars, Commercials, Tractors and Boats

Fit yourself in minutes –
feel the difference or your money back!

Diesel Tuning with CHIP Express™

More Power

Plug-in the CHIP Express™ diesel tuning chip and feel the extra power – instantly! Up to 40% more power means a sharper throttle response. Say goodbye to flat spots and turbo lag – say hello to smoother gear changes and boosted power. Enjoy a livelier feel, as if you'd chosen the bigger engine option.

More Torque

Fit the CHIP Express™ digital diesel tuning box for more torque too. You'll immediately notice better acceleration from low down in the rev range and when using taller gears. And that means more pulling power - precisely what you need if you tow a caravan, a horse box, a boat or if you drive a heavily laden vehicle like a van or pickup.

Better Economy

With ever-rising fuel costs you'll appreciate up to 20% better economy. Greater power and torque means you'll pull away with ease, change up through the gears much sooner and change down less. Auto boxes will respond in the same way too. This keeps your RPMs lower and is significantly more fuel efficient.

What is a Chip?

A programmed electronic microprocessor controlled device that simply plugs inline within the engine bay of the vehicle; it remains permanently fitted when in use but can just as easily be removed without trace.

When fitted it continually monitors and works to boost your engine's efficiency, all within governed safety parameters.

Remember the CHIP Express™ digital diesel tuning system is not a "replacement chip" where your ECU is physically opened and its original chip replaced (thus immediately invalidating your vehicle warranty). Nor is it a "remap" whose settings can be detected and even deleted during routine servicing. The CHIP Express™ plug-in digital tuning system is an additional sophisticated microprocessor controlled tuning chip which will give you substantial, immediate performance and fuel consumption gains.

So, 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.

Works Out of the Box!

The system arrives presentation packed and complete with everything you need to fit it yourself in minutes.

This includes digital tuning chip itself with the correct cable for your vehicle along with a weather-resistant mounting pouch and Velcro fixings, all designed for quick release and re-fitment if necessary.

You then simply plug it in following the detailed, engine-specific photographic instructions provided.

The system is designed to give optimum results right out of the box without needing additional complicated setting and tweaking.

See our vehicle selector application to find your diesel tuning kit and order online using our secure checkout today.

Rest assured you are buying the best quality, most rigorously tested system available!

Choose CHIP Express™

Throughout the industry CHIP Express™ is synonymous with innovative, class-leading digital tuning solutions and unparalleled standards of customer care and service.

Safety and quality are paramount; a CHIP Express™ tuning system will never damage your engine or compromise the safety of your vehicle, retaining all the protective functions and fault diagnostics of your vehicle's original ECU; operating well within governed engine tolerances.

Every CHIP Express™ system undergoes rigorous and extensive testing on new vehicles ensuring safety, reliability and suitability requirements are met.

You are 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.

Any questions?

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

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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...

“I have a 2015 Mercedes E250 CDI Cabriolet and recently fitted the chip. It took minutes to fit the chip itself and a further few mins of fettling to find the best place to stow the item, all in all a very easy solution. I bought the chip for the extra performance, more torque than power, as opposed to economy gains, and it has delivered it in spades. I took my car out for spin prior to fitting then again on the same road post fitting and I could feel the difference instantly and everywhere. I highly recommend this product for the grin factor, the economy gains will come as a result of the chip which to me is just a bonus.”


Leigh from Taunton

Mercedes E-Class W212 E250 CDI BlueTEC Facelift 204

“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

“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

“Superb Skoda - Superb economy! Just to say that I fitted the CHIP Express last weekend and I am now getting 50 MPG on and around town (compared to 44 MPG previously) and a phenomenal 59 MPG on this mornings commute to work (120 mile round trip). Previous average was 46 MPG. I was initially very sceptical about improvement but sensible use of throttle and with unit in default setting I have been blown away by the improvement! I am recommending to friends, work colleagues and family!”


Ian from Fareham

Skoda Superb MK2 2.0 TDI 170 CR

“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