Feedback ng mga sumubok:

Honestly, I do not see any improvement with this thing. What did I buy???? Good it was cheap so I won't waste time in disputes. However I'm absolutely unsatisfied.
It did not increase the performance of my car. According to the seller I can't use it properly (I'm a mechanic).
This is cheating. I have used it now several hundred kilometers and there is no difference. No More power and no More torque.