Some Challenger owners, who have done the Hellcat headlight air intake mod, are are concerned about possible debris and bugs entering the duct. A solution is D.I.P.S. It stands for direct intake port screen. It is installed on the backside of every Hellcat, Redeye and Demon brake duct. It keeps debris out of vital intakes, ducts and passages. They are made of aluminum and are certified for use in NASCAR. Here is a photo of one.