Quote:
Originally Posted by chendaxian888
so it is ok to put it back, will horses come back when I put another aftermarket exhast back?
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For most DDs, changing just the exhaust won't have much of an effect since the ECM can compensate for minor changes.
If you re-install the same brand/model exhaust that you took off, you will be back to where you are now and no re-tune will be needed. If you install a different brand/model, re-tune if you want optimum performance.