I just did a egr delete with the high flow elbow. I am running sct 9625OR street tune. After installing I have a green wrench on the dash display. I know a custom tune will clear that but I have three plugs in the engine bay that are not being used, do they make covers to fill those to keep grime out of them? Also does anyone make a plug the you could put in the empty plugs to make the ECM think the valve is still there? I am going to get custom tunes but in he mean time it would be nice to fill the empy holes.