RaceChip Chiptuning Avis 

I’ve used the XLR5 throttle controller on both my supercharged Jaguar F-Type and my turbocharged Mercedes SLC, and it was fantastic in both! Definitely not “utter rubbish,” as another reviewer described it. It made a very noticeable difference in throttle response and reduced the hesitation I felt when pressing the accelerator in both cars.

I also had the GTS on the Jaguar, and that was a noticeable upgrade, too. I still have the SLC with the XLR5 and am toying with adding either the RS or the GTS5 Black. I haven’t decided yet—mostly because I’m getting a little old to keep removing it for service visits and reinstalling it afterward! We’ll see.

Customer service is top-notch. When I had an issue with one of my XLR5 units, the team in Germany responded immediately and sent me a shipping label. I shipped it to Germany on a Monday. They received it, repaired it, and sent the same unit back. It was at my doorstep, fully functional, the following Monday.

Exactly one week from shipping it to Germany to having it back in my hands, repaired and ready to use. Customer service doesn’t get much better than that!

Clever product provides extra torque and about 15% fuel saving.

Have recently bought my second RacheChip. The first was for a turbo diesel Golf, this one was for an Ecoboost Focus. The company are really easy to deal with, the units are easily installed, and most of all, THEY WORK! Several of my friends have also bought RaceChips having seen mine, and all are very happy with the changes that these devices make to their cars......

Great company and products, purchased a racechip throttle response box for my bmw 118i it was easy to fit and made my car drive so much smoother I love the way it drives now! :) I did not need any customer support but know if i did that they would be on hand to help! :)

The chip works as advertised for my VW TDI, but only one problem. Each time I have made a purchase, they shipped the wrong one. I have been unable to return the first shipment as they refused to provide a shipping RMA label. Their communication is horrible, voice calls are not accepted. In emails, they have gone silent. Because this happened 2x as the first time I really thought it was my purchase error. Second time, I am a fool. I verified and the correct item selection was made.

I would say do it!
I have audi a3 1.5 tfsi and i can say that i can see a huge difference on torque and power its like my engine has woken up and is how it should be.
Was a bit difficult to install but apart from that i am truly happy with the performance dont listen to the negative reviews and give it a go.

Have a Mercedes GLA 200d 2017. Installed the RS chip purchased directly from RaceChip. Followed the instructions for installation and WOW, what a difference. I went for the RS chip as I thought it would be a good balance between performance and reliability as I didn't want to put too much strain on an engine with 87k miles on the clock.
The difference in power, whilst not extreme, it's definitely noticeable. Kind of lifts the power to where it should be when it left the factory.
Had no issues with EML or fault codes. Throttle response is bang on, even in race mode (which I use mostly) and improves when the Dynamic is set to 'Sport'. I have the OM651 block and this was the perfect solution to obtaining the power I wish it had when I first bought it.
RaceChip support was great and they respond to all queries almost instantly during working hours (not had an issue, just a few questions).
If you are thinking about getting a little bit more from your diesel engine (without breaking it), then get a RaceChip.
No regrets from me. Thanks for reading!

Due to a problem with my car, I had to return the kit. However I feel compelled to shared this good feedback regarding the excellent support I received all along, from the assistance with the set-up and the guidance when returning the package. I will 100% be a returning customer when I will buy a more suitable car.

I recently had an issue with my racechip xlr5 I email them and got a reply from roman what a great guy he responded very quickly and tried to troubleshoot the issues without luck he then sent me a prepaid envelope to send the racechip back and very soon I got a replacement can't thank these guys enough would definitely purchased from racechip again

Fiat 500c twinair 105hp, After reading some of the reviews I was a bit nervous to purchase, I rang racechip and spoke to a great guy who after telling him what I wanted to achieve he said the cheapest chip at £139.00 set on 5 would do the job. I ordered this and the chip came within a few days.
When it turned up there were no instructions in the box so I called Racechip and Charlotte emailed me the correct instructions.
Today I went about fitting the Racechip, The hardest part was getting the engine cover off, I followed the instructions exactly, it took about an hour but I was being extra cautious and double checked everything as I went along.
Thank fully when I turned the ignition on everything was perfect, the race chip lit up green and my dash was fine, I then started up and engine ran perfect.
Went out for a test drive and to my amazement the racechip has made a huge difference, Between 1st & 2nd a lot more torque, I can now pull away in second without the car stalling, in all gears I can now change gear earlier and the car pulls so much better, the engine is defiantly a lot smoother it feels more like a 4 cylinder not a 2 now. If the chip keeps behaving as it is now I can highly recommend this product and the company. I can not fault the service I received.

Utter rubbish. Purchased the RS tuner and XLR5 throttle tuner and App for my BMW G60 520i. Have made absolutely no difference whatsoever and the app has a mind of its own. I contacted Racechip who said no don't return it, let our tech guys look at it....why...just a ploy to get me to keep it. If you are advertising criteria on improvements then shouldn't it achieve them out of the box?

As for the app...the worst think I have ever downloaded on my phone. It decides if I go from eco or sport or race settings as when you click on one, it just jumps to another of its own choice....another £50 waste of money.

Seriously, for me,these products are the biggest con I have ever had. I has a Bluespark unit in my last car, that worked great but tried Racechip because it looked like a great option for this car......wish I had never found their website. The products and app are rubbish.

Update 15th April 2025...so the RaceChip response if very interesting, and utter rubbish. At no point did I request technical support nor want it. As I stated, if it doesn't make a difference out of the box as advertised then why would their technical support make any difference. Buyers choice, buy something, it's not as described then I send it back. I dont need the patronising responses.

More interestingly, first Race Chip flagged my review as fake, proved wrong when I sent a copy of my order to Trustpilot ..then they asked my review to be taken down as it was defamatory...guess what, Trustpilot reviewed and agreed it wasn't.

Racechip is a very very sad company who will do anything to have negative reviews removed.

Excellent throttle up-grade, much more responsive and easy to adjust modes.

Completely mach to description.
Easy to install and adjust. Happy with the purchase.

Excellent product as before this is the 3rd one I have bought and I am very happy with it. Excellent delivery time thank you very much 👌

Great piece of kit. Easy to install. Good price. Main difference I feel is at low rpm (less lag).

From the packaging through to the module the whole piece is premium. Under an hour to install and thanks to the app easy to control and adjust in the car and even in motion. Noticeable power gains and economy, really impressed by the whole experience. Glad I went for the top version straight off.

This is my 2nd tuning chip and both have been brilliant, easy to install and use. Nice clear instructions and really easy transaction. Highly recommend

Fast delivery, easy to follow instructions. Boosts my BMW's performance. I got the premium chip as they were doing a discount on their website. You can tell the difference when you want the extra power.

The race chip throttle control unit is really good. Easy to install. Easy to set up and recommend.
I fitted this to an Audi R8 V10 and it definitely helps with throttle response.