LT4 Knock Module
04-16-2007, 03:04 PM
#1
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LT4 Knock Module hey guys i have a 94Z A4 with Cat delte and LM1. ever since i deleted my cat the car feels real weak for some reason. down low it doesn't feel as strong as what it used to. could this be to false knock due to the loudness of the exhaust? need help ASAP.
04-16-2007, 06:27 PM
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Originally Posted by MDR
might of lost backpressure reducing low-end torque depending on your mods...