Originally Posted by Banjo250

I’ve already done exhaust, long ago. I do not have an oiled filter. No power lost whatsoever. I talked with AFE and they said this shouldn’t be happening, they told me to drive for a couple weeks with CEL on to see if system compensates and CEL goes away. Nothing so far, tomorrow is two weeks. However I’ve seen no issue. May just live with it, may go back to stock.