“I testdrive powerkit of 435i which is good. I got normal one tho, the price for the powerkit is too high. I chose swisschip that was what one of my pals did to his porsche. Now it is much better BMW powerkit. Overall ‘GOOD’ “

“Love Swisschip. Can’t even imagine driving without it now. I was on 6-0 before now I am on 8-0 setting. Its been 2 weeks with 8-0 setting without any issues, I guess it is fine?”

“Now it feels like real Cooper S. Couldn’t believe this small engine could be changed this much”

“What a great performance ! I feel much smooth without lag when accelerating ! Thanks a lot”

“Simple. If you have a problem with this thing you get refund. But me, I am satisfied with this thing. I can see big differences in power and stuff. Wonder how small chip like this can change whole car”

“Thank you very much guys. I beat pure e92 M3 on both drag and roll racing ! couldn’t expect this much result, amazing !”

“Realised after to peel clear plastic off the sticker. Now my Great wall has power like my Colorado now, wicked Cheers”

“I was always hoping my car has more power. One of my friends recommend swisschip. I am so happy with it. It is really good and working well. From the start to mid high speed all got better than before. I was not sure if it helps transmission better. I sense it does.”

“After installation, I am able to feel actual differences with the car. Been using it for just 3 days it got so much better the first.. I am loving it. But i am being greedy so trying higher setting. I love to know what swisschip can do for mazda.”