Find Your Vehicle
The most innovative and effective VW 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 VW's engine power, whilst reducing your fuel consumption. Buy a VW diesel tuning chip that will safely transform your drive for the better!
Jai from Leeds with a VW Passat MK5 1.9 TDI 130 said:A definite improvement in mileage and performance. I drive for work, previously my trip was costing me £42, after installing this its now costing me £35. Very happy with it and happy with your service!
Andrew from Southwell with a VW Touareg MK1 3.0 V6 TDI 240 said:Can I say what a brilliant piece of kit the tuning box is. It resolved the flat spot that seems to come with the engine's standard set up and gives a great surge of extra power, and yet I return about 2mpg better fuel economy. Brilliant!!
Richard from Baxter, Australia with a VW Transporter T5 2.0 BiTDI 180 said:We have purchased several units for our diesel VW cars and vans and have been seriously impressed with the fuel saving and added power. I recently installed a unit in the T5 BiTDI in 2013. We only used half a tank of fuel to achieve 550 km's, before the same would have taken 3/4 of the tank. This particular trip included overtaking on a long country drive through the mountains to go skiing. I would recommend these units to anyone interested in improving economy and performance.
Gordon from Derby with a VW Touareg MK2 3.0 TDI 245 said:I ordered my unit for a 2014 VW Touareg sometime after 4pm on Wednesday and the postman handed it to me about mid-day on Thursday - what service! Not being particularly adept at things mechanical I read the instructions several times before attempting to take off the engine cover. Having completed this, and read the instructions again I located the appropriate connectors, plugged in, and started up. After securing all new parts I fitted everything back together - job done. 30 mins reading and 10 mins doing. Many thanks for 5* service, 5* instructions and, so far, 5* satisfaction!
Peter from Chippenham with a VW Tiguan MK1 2.0 TDI DSG 140 said:The addition of your digital add-on has made a marked difference to performance. I have not altered the settings as, for me, the extra power when I need it is perfectly adequate, for the time being! What is especially surprising (being a cynic) is that the claim it will improve fuel efficiency is actually true! I noticed within a very short distance that fuel consumption was showing a big improvement, from an original average of 41 mpg to 45.7 mpg. . . . and that's just local driving - I haven't been on a run yet! The extra power also puts a smile on my face. Am I happy? Big yes!
David from Canberra, Australia with a VW Touareg MK2 3.0 TDI 245 said:I received my tuning box last week and am very happy with the ease of installation and the overall increase in performance!
Roger from Barwell with a VW Transporter T5 2.0 TDI 140 said:Fitted a chip to my Transporter in 2012, it now pulls my caravan with ease! On my first run of 200+ miles I never stopped smiling! On the return run I disconnected chip to verify the gains and could not believe the difference, at the next services I had to stop and refit to put that smile back on my face! Worth every penny. My advice to all is to try one!
Gordon from Tipton with a VW Golf MK7 2.0 TDI 150 said:Just to let you know that I've been running the chip for 4000 miles now and am impressed with the results. I noticed the difference immediately with low end power and have seen huge gains on motorway MPG. Put the car in sport mode and its unbelievably quick and no smoke (as I have found with cheaper chips). I would thoroughly recommend CHIP Express to anyone, with the savings I'm making with fuel the chip will have paid its self off in no time!
Gary from Carrickfergus with a VW Golf MK7 2.0 TDI 150 said:Please feel free to 'post' this response. I recently acquired my 'tuning box' for my VW Golf (Mark 7, 150 PS) from 'CHIP Express' and have been delighted with it's acquisition. The price was very competitive when compared with other reputable suppliers. The very impressive results upon fitting were available instantaneously in that acceleration in all gears (especially the lower ones) is not only smooth but also extremely progressive. All in all I'm a very 'happy bunny' with the product, many thanks.
Bryan from Teddington with a VW Golf MK5 2.0 TDI 140 said:Just thought I’d drop a few lines of feedback, not sure what use they’ll be, but thanks for a great piece of technology that actually does what it says it will. Supposed to help improve economy as well as power. Well stuff the economy!! It goes like stink now! Tried it on the standard setting, much more responsive. Then tried 2 steps up (1 down from max) and it spins the wheels in 2nd and 3rd. So dropped it down one peg and perfect. No wheel spinning, but pulls like a train. Speeding ticket, here I come!!
Gordon from Loughborough with a VW Scirocco 2.0 TDI 140 said:In 2009 I bought a tuning kit for my Scirocco 2.0 TDI GT with good results for the 2 years or so I had the car. The system is was easy to fit and gave improved drivability, power and economy. I have just bought an Audi A5 3.0 TDI Quattro Auto (240PS) and have upgraded the same chip for use on this vehicle. I wouldn't hesitate to recommend CHIP Express!
Michael from Las Vegas with a VW Golf MK6 2.0 TDI US Spec 140 said:Absolutely loved the performance upgrade on my MK6 VW Golf. A noticeable increase in power and about an overall increase in mpg of 10% highway and city. I have already upgraded the old unit for a new one for the 2015 MK7 VW Golf I have on order. The only thing better than the Chip Express unit is the Chip Express customer service!
Ben from Frankrijk, France with a VW Caddy MK4 2.0 TDI 102 said:I bought your chip to have more torque to transport concert grand pianos throughout Europe (I am a restorer of these instruments). I have to pull the weight of my trailor, a special container and the instruments, which weighs in at about 1200kg. This Caddy is a lot slower than my former car (a Golf TDI) which had similar power. It turned out, the weight of this Caddy is about 200kg more! So I like your chip very much, it allows the Caddy to climb much easier on the sometimes very long highway gradients! FOLLOW UP: Recently I made a trip to Scandinavia, with a my trailer attached (of about one ton total weight). The acceleration is much better, and the car is easier to drive. I did 6000 kms and the average consumption was about 6 liters per 100 km, pretty good considering I had many things loaded in the car also. I’m very happy with the chip, it is a much cheaper option than buying the same car with more horsepower in it originally. In my next car I definitively want to install it again!
Allan from Yandina, Australia with a VW Golf MK6 2.0 TDI 140 said:I bought the chip unit about 5 years ago for my 2010 Volkswagen Golf 2.0 TDI. I am very happy with it. I have always kept it on the standard setting. I live in Australia and now get between 3-4 litres per 100km on flat road, I am very happy with the improvements. Thanks for a great product! Sincerely, Allan.
Vince from Marana, United States with a VW Passat MK7 2.0 TDI 140 said:I was skeptical about purchasing an "off shore" performance chip. It's been installed for almost 2 weeks now. Right off the throttle lag was almost gone and while not a race car acceleration was noticeably better! My economy went up a solid 3-4 mpg (I drive the same route most everyday). Right now my 2014 Passat TDI SEL is so close to averaging 50 mpg (46-47 by filling to the brim and dividing miles driven by gallons used) it's almost frustrating. But this kind of frustration is great! Best money I've spent on my VW yet! THANKS.
James from Eyemouth with a VW Sharan MK2 2.0 TDI DSG 170 said:I have had my Chip Express unit installed for 1 week now and would just like to let you know that I am extremely happy with it. It took minutes to fit to my brand new VW Sharan. The main reason for buying it was to improve fuel economy. On the twice daily 24 mile school run MPG has increased from 36 to 44 and on longer journeys it has increased from 42 to 50 MPG. Nothing short of remarkable for a large, heavy, 7 seater car. The increased performance is handy for quick overtaking, and can it quite easily outrun many "sports saloons". I can highly recommend your product, IT REALLY DOES WHAT IT SAYS ON THE TIN!
Nils from Tallinn, Estonia with a VW T5 2.0 BiTDI 180 said:Your tuning box has turned my VW Multivan (T5) 2.0 BiTDI DSG into rocket! It also saves a minimum of 10% on fuel, a much better option then remapping, thank you!
David from Leicester with a VW Touran MK1 2.0 TDI CR 170 said:I have a Touran 2.0TDi 170 (2012). I have used 'fuel chips' in the past with varying success. However, once I fitted the Chip Express module I was quite frankly gob-smacked! Using the optimum setting I have gone from 168bhp to 198bhp (ish) and I am now comfortably returning 60-65mpg with normal driving. The power delivery is considerably smoother and over a much wider band. All in all, it's a 10/10 for me, an absolute no-brainer in terms of money saved on fuel costs over 3 years - even at 10k miles per annum. All that combined with good customer service provided by people who clearly understand their product makes this one of the better purchases I have made.
Keith from Eastleigh with a VW Tiguan MK1 2.0 TDI 140 said:Have just fitted my CHIP Express and all I can say is WOW! I can not believe how lively my car is now, it has made such a difference. Money WELL spent, thanks!
Keith from Brisbane, Australia with a VW MK5 Jetta 2.0 TDI DSG 140 said:Your chip has transformed my Jetta into a totally superb driving machine. I now wonder why VW engineers fail to attain the same standard of performance achieved with your system. There is no turbo lag anywhere in the rev range, not even from the starting grid and no sharp gear changes. The power band is right across the rev range. The economy has improved from 5.8L/km to 4.8L/km on the open highway. The engine is smoother and quieter. Summing up, it is now a vehicle I want to drive. I have four sons and each has agreed that your chip has made a remarkable difference. Thanks for the fun!
David from Ryton with a VW Golf MK5 2.0 TDI 140 said:The chip is amazing! Just plugged it in this afternoon. The torque is unbelivable, so is the power. I had to settle for a Golf GTTDI instead of a GTI due to insurance and petrol costs, but this chip has just made it better than any GTI. My so called 140PS Golf is now one not to be messed with. Thanks Chip Express!
Glyn from Southampton with a VW Transporter T5 2.0 TDI 140 said:Just installed the above, first time out, noted difference, more torque, more mpg. Does what it said on tin!
Jeffrey from Co. Antrim with a VW Scirocco 2.0 140 said:I recently bought a tuning chip for my 2009 VW Scirocco, the power gains were fantastic and I was very impressed that I could so easily adjust the power setting by myself. This is alone makes Chip Express product unique from any other I have came across! Standard I was getting at best 48mpg but with this box I now achieve over 60mpg! The customer service is brilliant too! I would recommend Chip Express to anyone and already have recommended them to friends and family.
Wolfgang from Ontario, Canada with a VW Golf MK6 2.0 TDI 140 said:Had my CHIP Express hardware now for about 9 month and love it. I drive a 2.0L TDI Golf Wagon (2010) in Canada and installed the chip in under 10 minutes. The HP and torque increased instantly after installation. The engine sounds a little bit different, however It appears to sound better. My gas (diesel) mileage increased by over 10%. I used to cruise with an average mileage of 5.4 L/100km, thanks to CHIP Express this has improved to about 4.7 L/100km. I ended up increasing the output by two notches (settable on the control unit), I could feel the increase. Great Product, easy to install and easy to remove for VW Maintenance Service. I would highly recommend the Chip Express for the fuel savings or for the increased power.
Nick from Tamworth with a VW MK4 Jetta 1.9 TDI 105 said:We recently bought a caravan and collected it with our car but when towing realised we needed more power, a friend told us to use 'Chip Express'. I bought one and fitted it last week, went for a test drive and 'WOW' - the power is amazing now. We towed the caravan earlier today and noticed it was much easier to pull and the fuel economy was much better, when we picked it up we got 33mpg but now we're getting 40mpg. We are very impressed, especially as we ordered the box at 4:30pm on Friday and received it Saturday morning!!
John from Chersterfield with a VW Transporter T5 1.9 TDI 102 said:I would just like to thank you for your quality service and product. I have a 1.9 TDI VW based motorhome and tow a small Suzuki Alto for travelling when parked on site. Prior to fitting the Chip it was a little under powered, well no more! There is a significant improvement on towing, less gear changing and better efficency. I would like to recommend your product wholeheartedly.
Carl from Esher with a VW Golf MK6 2.0 TDI 140 GT said:Just fitted my chip. Very easy to fit. Very clear instructions. The improvement in performance is just what I wanted. Lots of extra torque making overtaking even easier without the tyre burning wheel spin of too much power. Perfect, saved me thousands when compared to the cost of the 170 GTD!
Lawrence from Luddington with a VW Transporter T6 2.0 TDI 150 said:Many thanks for the chip fitted to my VW T6. I found it far easier to fit than to write a review about it!
Lee from Halifax with a VW Golf MK7 2.0 TDI 184 said:I have been running the chip for a couple of thousand miles and I'm getting great results. Economy on the whole is about 7-8 miles more than without the chip. VW's figures leave allot to be desired! Currently running at around 52mpg combined and the performance on what was already a quick car is incredible! Even in Eco mode the pick up is amazing. All in all the chip is brilliant and I would recommend the chip to anyone looking to make gains in both mpg and performance.
Paul from Hillsborough with a VW Amarok MK1 2.0 BiTDI 180 Auto said:Just a few words to let you all know at Chip Express that I was delighted with the very quick delivery of the tuning system (less than 24 hours!), fitted in about 1 minute, results are brilliant, seems like a different vehicle! Thank you.
Don from Auckland with a VW Golf MK5 1.9 TDI 105 DSG said:Last Saturday I fitted my new Chip Express system and all I can say is WOW!! It measured up to every aspect that you promoted it on as regards the upgrade in performance. It is measurably smoother, in fact quieter, far more torque, and changes gears much more rapidly... it is very quick now! Cheers.
David from Market Bosworth with a VW Transporter T5 2.0 TDI 102 said:Hi, just feedback on my purchase for a VW T5 102 T28. Fitting was simplicity itself and the result was incredible, the lacklustre performance from rest is transformed and fuel consumption has improved markedly, a good investment that has transformed a good vehicle into a great one.
Ian from Rosanna, Australia with a VW Tiguan MK1 2.0 TDI 177PS said:I installed your chip in my VW Tiguan 130kW TDI in February this year. It has been fantastic. Increased power, torque and definitely more economical on light pedal driving. Doing 100 KPH on flat roads it is only using around 4 litres per 100 kilometres. Incredible from a 4WD SUV. I also tow car trailers and a caravan and the towing power increase is noticeably better.
Richard from Tavistock with a VW Tiguan MK1 2.0 TDI BlueMotion 184 said:I raved about this unit on my Golf GTD back in 2013 and since then have transferred it to a Touareg 3.0 TDI with similar results. Now it is going on to a 3rd vehicle a 2.0 TDI Tiguan. Throughout any query or guidance I have needed CHIP Express have been there to help, whats more they do so quickly. Initially the cost may daunt but thinking of it long term, it pales into insignificance. A classy product from a reliable supplier. No I am not one for rave reviews but this time I felt I needed to. FOLLOW UP: Completed installation of remapped box on Tiguan and went on extended test run. Not really necessary as the greatly refined running and increased smooth power was clearly evident in the first half mile. It brings the car alive!
Stephen from Grimsby with a VW Golf MK7 2.0 TDI DSG 184 said:I sent my chip back to get an upgrade from a MK6 Golf GT to a Golf MK7 GTD DSG, the turn round was only 2 days from posting. The DSG auto box is so much smoother and the fuel consumption is also much better, for example set cruise at outside lane motorway speeds today and got a return of 58.9 mpg. I have had this chip now for 6 years on different Golfs and it has never let me down!
Steve from Torquay with a VW Amarok MK1 2.0 BiTDI 163 said:I have been using your chip for just under two years and have been delighted with the performance difference, fuel economy is 10-15% better and I need to change gear far less as third gear was made much more wide ranging. Importantly I am able to tow a twin axle caravan with ease and at 65mph I get the same MPG as my old Hilux did without a caravan on the back! I recently decided to change my model of Amarok to the BiTDI 8 speed Auto and so before heading off on a long round trip to view a possible vehicle I decided to remove the CHIP Express unit. The result was that it was like driving a different vehicle with much reduced performance and fuel figures. I have since returned my chip for reprogramming to suit the BiTDI. Thank you for an excellent product that definitely meets and surpasses your claims.
Kristian from Marbella, Spain with a VW Golf MK6 2.0 TDI 140 said:I just got back from a European tour of 5000km and that GOLF drives better than ever. I have now enjoyed 6 months of noticeable improved economy. Torque is now effortless up to 3000rpm and I now do 17km/l when pushing it and on cruise control at 100-120kmh somewhere between 22-26km/l, crazy when my BMW M3 is struggling to do 9km/l. I highly recommend the chip. I am one happy bunny!
Bryan from Northampton with a VW Eos 2.0 TDI 140 said:I have been delighted with the improvement to my VW EOS since fitting the CHIP Express unit. The car is far more responsive and returns on average about 8 mpg more. Fitting was simple and consequently my wife having bought a new diesel Smart, the first thing to add is the relevant CHIP Express. Many thanks!
Paul from Sydney, Australia with a VW Amarok MK1 2.0 BiTDI 163 said:Since I installed the chip into my Amarok I have seen a big drop in the fuel consumption and a noticeable increase in power. I run the car loaded with my tools so it is always carrying a fair amount of weight. I am very pleased with my investment and would recommend it!
Mike from Andover with a VW Golf MK7 2.0 TDI 184 said:I have just bought one of your chips for my Golf GTD, 2013. Having fitted it within minutes I am astounded at the difference it has made to an already quick car. There are no flat spot at all in any gear and it will now spin the wheels in second gear if you floor it!
Alex from Dundee with a VW Golf MK7 2.0 TDI 184 said:Received and fitted this afternoon – HOLY MOCUS!!!! It was rapid before but now it’s incredible!! I'm going to leave it on the setting as sent, fast enough and pulls like a train.
Neil from Burbage with a VW Passat MK7 2.0 TDI 170 said:I have one of your kits on a 2012 Volkswagen Passat 2.0 TDI 170 and a 2013 Audi TT 2.0 TDI 170. I would just like to say how pleased I have been with your products. Both my wife and I noticed a great improvement, the increase in both power and fuel efficiency is phenomenal!
Richard from Tavistock with a VW Golf MK7 2.0 TDI 184 said:What a transformation! Vastly improves the fun to function ratio in all driving styles and moods yet amazingly with no loss of economy, in fact an improvement. A word too about after sales support, first class. Would recommend product and company anytime.
Mark from Bristol with a VW Golf MK7 1.6 TDI 105 said:Originally fitted on my Golf Mark 6, I then got a new Golf Mark 7 in 2014 and paid for my original to be upgraded because I had been so impressed. This was done and I had a small issue that was swiftly resolved the same day! Talk about great customer service! Just wish other companies were as good. FOLLOW UP: I forgot to mention in my earlier feedback about the difference the chip made to my cars. In both cases the flexibility and power increase was really noticeable especially as a colleague had the same cars so I could switch between a normal and chipped one to compare.
Robert from Bodmin with a VW Amarok 2.0 BiTDI Auto 180 said:After much deliberation of buying the chip I am absolutely amazed at the performance, fuel economy and response I have gained from fitting. The ease of fitment was outstanding from taking out the box to driving was a maximum of 5 minutes. On my usual drive I was achieving 27.8mpg on today’s drive without changing my driving in anyway I achieved 35.4. Top product with outstanding results!
Chris from Beechworth, Australia with a VW Golf MK5 2.0 TDI 140 said:The cost of diesel is on the rise which is why I chose to get a one of your chips, now in combination with a 2.5" s/s mandrel bent turbo back exhaust, EGR delete kit, catch can fed into exhaust and high flow inlet I get on average 4-4.9l/100km with more torque and HP than I could ever need. The CHIP made the engine so much smoother and only took a handful of minutes to fit. Thank you from my family and myself, we are 100% satisfied and recommend you too choose CHIP Express!
Alan from Norfolk, Downham Market with a VW Touarn MK1 2.0 TDI PD 140 said:It has now been 5 months and without altering the supplied chip settings we are very very pleased with performance; miles per gallon, acceleration and the smoothness of the vehicle - it lives up to everything your website says. We have found that economy has increased by at least 16mpg solo and when towing the caravan it has increased by approximately 5mpg. We would recommend this product (although the price seemed a little daunting), the rewards far outway the costs and will continue to do so!
David from Chelmsford with a VW Golf MK5 2.0 TDI 140 said:WOW what a change, it feels like a different car... it now feels like I'm driving a GTi. Brilliant, brilliant, brilliant. I have not got a clue about engines but with your instructions it was easy! Thanks very much!
Stuart form Malton with a VW Amarok 2.0 BiTDI 180 said:I am high mileage driver and my 3 year old Volkswagen Amarok has done 110,000 miles in just 3 years, ALL with your chip fitted and it has never once given any trouble!
Geoff from Kidderminster with a VW Scirocco 2.0 TDI 170 said:I have now purchased three chips and had two re-programmed. We have fitted these to two Scirocco 170 TDI's, both have a big improvement in performance and an average mpg over 26000 miles of 55 mpg. The DSG auto box could be in sixth before 40 mph. Another is currently fitted to a BMW X1 2.0d xDrive, it needed a performance boost and has a sweet spot between 2000 and 3000 rpm that just didn't exist before the box was fitted. We have seen an increase in mpg of about 5 mpg, this is a big heavy car for the 2.0 engine. One of the reprogrammed boxes is for a Porsche Panemerra 3.0 diesel! Saw big improvements on an A6 3.0 TDI which is the same engine, so looking forward to the improved mpg and smoother power delivery. I strongly recommend CHIP Express, the systems only take a couple of minutes to fit!
“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
“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
“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
“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