[RKDinOKC]

The 928 has big cold air intake tubes that run from the front above the radiator all the way to the back of the motor where the air cleaner box is located. There was some discussion about lining the tubes with seal skin because of it's low friction qualities. Then another guy suggested lining them with the dimpled skin of golf balls. Then another guy posted that they were wating their time. He filled his intake tubes with golf balls and the car didn't run worth a darn.