D deemyze Member : Protege5 Aug 30, 2012 #1 Can anyone chime in on whether. There is a chip that increases fuel economy ?
E evilmonkeyMSP Scrotie McBoogerBalls Contributor : '13 CWP MS3 & '16 Mazda6 GT Aug 30, 2012 #2 useless. dont waste your money. it's just a resistor that "tricks" your ECU to do nothing.
