Quote:
Originally Posted by fzust
It will run leaner with the header & exhaust, however as it is comprehended in the closed-loop control of the ECU, the car will adapt over time. with a different intake, the Mass-Air sensor diameter is changed and thus calibration of the closed-loop control is changed and no adaption will occur.
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So just to make sure my logic is right here, the ecu will adapt for the exhaust & header to prevent a lean condition. The hp gains from these parts won't be optimal as if the ecu was specifically tuned for them but I will still save some weight and get the nicer exhaust tone. This sound about right?