Quote:
Originally Posted by madwi
All you are doing is unbolting a few bolts and pulling old exhaust off and bolting the new one on. The battery can stay connected with no issues.
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True, but many people suggest unplugging the battery and letting everything run dead as a soft ECU reset so that it recalibrates the A/F mixture.
Not sure if this is valid, but I did it after installing HFCs and CBE. No harm in it; my subjective assessment is that it pulls a little harder.