Dome skids are staying, but there will be no strakes. One week after an April 6 test of the setup at Indianapolis Motor Speedway, IndyCar released a statement saying manufacturers would be allowed a concession, but that would not include diffuser strakes. "Following extensive data evaluation following the Verizon IndyCar Series aero kit test at Indianapolis Motor Speedway on April 6, INDYCAR is permitting manufacturers to lower the optional underwing sidewalls by 9 millimeters (0.354 of an inch) for the 100th Running of the Indianapolis 500 presented by PennGrade Motor Oil," IndyCar's statement says. "INDYCAR maintains its position spelled out in the 2016 Verizon IndyCar...
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