Quote:
Originally Posted by stefan
Not sure who you are selling to here. Most people in these threads understand the difference between a piggyback which applies boost changes and forces the ECU to compensate and a proper tune that remaps timing, fuel, etc. JB4 is primitive and, in my opinion, risky to run long term. As for warranty all of these methods will void it and can be discovered in the event of a failure. Warranty shouldn't be something you are trying to retain on your modified motor.
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Yeah, it's 2021, everyone knows what a JB4 does by now.
Arguing that your warranty will be intact except in the case when you need it is also amusing.