aiya some ppl here fail/jelousy dont bash others la. keep these personal.
whether or not lies and deceit in trades dont matter to us consumers provided the thing being sold is reliable and worth the money.

With that said, this is a DIY product, and the consumers all here are like beta testers. How long is this product being carried out already? Positive short term effect may be well observed now. However what happens like after 3 years? Will it drain the battery quickly? Impact on other car's components?