I don't know what cool air induction you had, but there has never been an application where under the hood air intake being replaced by cooler air from where ever has not mad significant power increases from the higher density cooler air. You continue using the OEM filtration and you will have no problems with your engine. As to Blue ?. It comes full circle with spark plugs. What is the latest and greatest to day was here before but with a new name. I recall when Chrysler Hemi engines had the best of the best. AutoLite Resistors gapped at a whoaping 0.035 inches. That was around 1951. Made thier engines really perform. The real reason was for radio noise suppresion. I still prefer copper cored plugs. Happy Trails Beep Beep from Houston.