Several Mass Air flow sensor problems have been reported by K&N users. If you are looking for increased HP, I can send you a copy of a two dynamometer results acheived with my Vette with original filter and a K&N. Increased HP with the K&N: NEGATIVE 7HP at 5,700RPM and up. Bottom line: Waste of money and probably cause of problems. But itS, your car.
jackD