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Originally Posted by PorscheDoc
GIAC does not disable the knock sensor, or any other sensor. This is what seperates the leaders in the industry from the local laptop tuner.
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Seems to me that when you bypass cats and fool around with the exhaust in a big way you'd better disable something(cancelling the code effectively eliminates the sensor) or you'll be driving around with the check engine light on, and god knows what happening from the ECU to compensate for the readings on the exhaust sensors. So it's not an unusual thing.
If an industry leader has such a solution I am all for it.
But for every person that reports good gains from indusrtry leaders, there is another that doesn;t get squat, often listing the same mods. As I read through the archives, it's been beaten to death on these boards, with seemingly more folks not getting gains.
And while I understand we are talking about two different cars, I have seen the same issues before - and not from "laptop tuners". I would like to avoid that is all.
Anyways, I will hopefully hear from GIAC themselves shortly.