Matt Cramer wrote:Headphones and amplifier. We're able to hear it over some pretty wild open exhaust cars with Phormula's headphones.
Kits like Phormula or Gizzmo Kmon for now have price about 600-650 USD and it consist of amplifier, headphones and knock sensor. But if you byu this stuff separatly or hand made kit like in Ebay in link, price would be 160 USD. I was talking with guy, who selling this and he said that he using same kit and everything work great, dont know true or not. http://www.ebay.com/itm/knock-detection-ecu-tuning-earphone-kit-/272638832141?hash=item3f7a8a6e0d:g:pR8AAOSw3ZRY-Onk&vxp=mtr
So, please, can enybody explane the difference between this two kits and what the main reason to overpay for brand kit. I mean, may be, in brand kits all parts are colibrated between themselves exactly for engines knock detection or something