Originally Posted by edo
It can't. Such statement the "expert" made is nonsense. ECU adapts ignition constantly, depending on various factors (temperature, humidity, load, etc.). So an aftermarket catback just can't harm your engine.
yeah thats what i thought but wasn't 100% sure, thanks for clarifying
btw 600 Mb down and 300 Mb up... WTF??? where are you getting this and how much are you paying?!?