“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?”

“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.”

“It’s been around 1200km now with swisschip, I absolutely love it. It gets rid of the dead spot from take off. I will try next notch soon and let you know guys. Cheers”

“Without swisschip I would absolutely get rid of my car. Swisschip actually helps transmission lag better. I definitely keep this car for another year it will save lotta money as well. Highly recommended.”

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

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

“Very impressive, even though it was short run after installation. Simple install, no warranty issue, this much of performance? Definitely the right choice !”

“I was so unhappy with this lame ass car. Diesel Lag/slow acceleration stressed me out. Wished i got 35i engine. I never believed swisschip. But unexpected result. I feel like the performance increases 15-20% for sure. Guarantee this is the one that also suitable for other cars i have”