The GTS Black race chip is very good… The GTS Black race chip is very good and gives a real good boost to my Honda Civic Si _Copue 2018 . from aprox 205 hp to aprox 250 hp. I am using it together with a street version PRL air filter but as I read the chip is indicated for a stock engine without any modification, so from time to time the engine fails very rarely in the initial acceleration by absorbing too much air since as the PRL street air intake is installed it absorbs more air than original. When I changed to the PRL race version air intake, I couldn't use it anymore because the air intake is almost 50% + air so the race chip is no longer enough and you have to do a reprogramming with Hondata or KTuner . In any case, today this chip is excellent for those who do not want to change the standard of a car and increase a good amount of power and use the maximum possible power of your car as standard. I would like you to also prepare for normal trucks like the 2.4 L Mitsubishi Outlander that I have but apparently you focus on other types of engines, in fact, I have a RoadRace chip from the USA, specially designed by them for their race SUVs, for my 2017 Mitsubishi Outlander increasing the power by 12 to 15% is a good bit to improve the performance of the engine. Greetings and keep up the good work.

Improvements across the board! I can honestly say that I got both an increase in power AND improved mileage so far! The installation was pretty simple but, finding a spot to mount the unit (away from heat) is tough in a small car. There is still periodic disconnection with my phone app but, all in all my experience has been positive! I'd do it again!

I would not recommend RaceChip I would not recommend RaceChip. I bought it tried it and it did nothing good. The Technical support was rude, aggressive and ultimately useless- Your coils are bad you need new plugs. I sent it back for a refund - it didn't do anything and nobody was surprised - especially not their Returns Department. They must get a lot of practice to be so good at it. I don't believe that these "Chips" do anything apart from have a light and a funny little screwdriver

Great Product and customer service Great Product. The instructions that came with the unit were totally inadequate for my car's install. But I simply emailed RaceChip with my car info and they emailed me instructions and pictures of the exact model of my car's engine bay and install instructions.

Great results on my BMW Great results! My car definitely definitely is faster and received an HP boost as measured through time trials. I bought the GTS black racechip and mobile app for my US model 2016 BMW 228i. The instructions were easy to follow (I used a Youtube video) and the app linked easily and seamlessly to my racechip. The customer service was helpful although I am very disappointed the engine warranty only runs for cars with up to 48k miles but that is stated on the website.